987328920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:354

約数の個数: 256

約数和(自身を含む): 3285504000

約数和(自身を除く): 2298175080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 38, 40, 57, 60, 61, 62, 76, 93, 95, 114, 120, 122, 124, 152, 155, 183, 186, 190, 228, 229, 244, 248, 285, 305, 310, 366, 372, 380, 456, 458, 465, 488, 570, 589, 610, 620, 687, 732, 744, 760, 915, 916, 930, 1140, 1145, 1159, 1178, 1220, 1240, 1374, 1464, 1767, 1830, 1832, 1860, 1891, 2280, 2290, 2318, 2356, 2440, 2748, 2945, 3435, 3477, 3534, 3660, 3720, 3782, 4351, 4580, 4636, 4712, 5496, 5673, 5795, 5890, 6870, 6954, 7068, 7099, 7320, 7564, 8702, 8835, 9160, 9272, 9455, 11346, 11590, 11780, 13053, 13740, 13908, 13969, 14136, 14198, 15128, 17385, 17404, 17670, 18910, 21297, 21755, 22692, 23180, 23560, 26106, 27480, 27816, 27938, 28365, 28396, 34770, 34808, 35340, 35495, 35929, 37820, 41907, 42594, 43510, 45384, 46360, 52212, 55876, 56730, 56792, 65265, 69540, 69845, 70680, 70990, 71858, 75640, 83814, 85188, 87020, 104424, 106485, 107787, 111752, 113460, 130530, 134881, 139080, 139690, 141980, 143716, 167628, 170376, 174040, 179645, 209535, 212970, 215574, 226920, 261060, 265411, 269762, 279380, 283960, 287432, 335256, 359290, 404643, 419070, 425940, 431148, 433039, 522120, 530822, 538935, 539524, 558760, 674405, 718580, 796233, 809286, 838140, 851880, 862296, 866078, 1061644, 1077870, 1079048, 1299117, 1327055, 1348810, 1437160, 1592466, 1618572, 1676280, 1732156, 2023215, 2123288, 2155740, 2165195, 2598234, 2654110, 2697620, 3184932, 3237144, 3464312, 3981165, 4046430, 4311480, 4330390, 5196468, 5308220, 5395240, 6369864, 6495585, 7962330, 8092860, 8227741, 8660780, 10392936, 10616440, 12991170, 15924660, 16185720, 16455482, 17321560, 24683223, 25982340, 31849320, 32910964, 41138705, 49366446, 51964680, 65821928, 82277410, 98732892, 123416115, 164554820, 197465784, 246832230, 329109640, 493664460, 987328920]

約数ペア:

[(1, 987328920), (2, 493664460), (3, 329109640), (4, 246832230), (5, 197465784), (6, 164554820), (8, 123416115), (10, 98732892), (12, 82277410), (15, 65821928), (19, 51964680), (20, 49366446), (24, 41138705), (30, 32910964), (31, 31849320), (38, 25982340), (40, 24683223), (57, 17321560), (60, 16455482), (61, 16185720), (62, 15924660), (76, 12991170), (93, 10616440), (95, 10392936), (114, 8660780), (120, 8227741), (122, 8092860), (124, 7962330), (152, 6495585), (155, 6369864), (183, 5395240), (186, 5308220), (190, 5196468), (228, 4330390), (229, 4311480), (244, 4046430), (248, 3981165), (285, 3464312), (305, 3237144), (310, 3184932), (366, 2697620), (372, 2654110), (380, 2598234), (456, 2165195), (458, 2155740), (465, 2123288), (488, 2023215), (570, 1732156), (589, 1676280), (610, 1618572), (620, 1592466), (687, 1437160), (732, 1348810), (744, 1327055), (760, 1299117), (915, 1079048), (916, 1077870), (930, 1061644), (1140, 866078), (1145, 862296), (1159, 851880), (1178, 838140), (1220, 809286), (1240, 796233), (1374, 718580), (1464, 674405), (1767, 558760), (1830, 539524), (1832, 538935), (1860, 530822), (1891, 522120), (2280, 433039), (2290, 431148), (2318, 425940), (2356, 419070), (2440, 404643), (2748, 359290), (2945, 335256), (3435, 287432), (3477, 283960), (3534, 279380), (3660, 269762), (3720, 265411), (3782, 261060), (4351, 226920), (4580, 215574), (4636, 212970), (4712, 209535), (5496, 179645), (5673, 174040), (5795, 170376), (5890, 167628), (6870, 143716), (6954, 141980), (7068, 139690), (7099, 139080), (7320, 134881), (7564, 130530), (8702, 113460), (8835, 111752), (9160, 107787), (9272, 106485), (9455, 104424), (11346, 87020), (11590, 85188), (11780, 83814), (13053, 75640), (13740, 71858), (13908, 70990), (13969, 70680), (14136, 69845), (14198, 69540), (15128, 65265), (17385, 56792), (17404, 56730), (17670, 55876), (18910, 52212), (21297, 46360), (21755, 45384), (22692, 43510), (23180, 42594), (23560, 41907), (26106, 37820), (27480, 35929), (27816, 35495), (27938, 35340), (28365, 34808), (28396, 34770)]