280378440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{229}}^1$

素因数の和:444

約数の個数: 192

約数和(自身を含む): 968760000

約数和(自身を除く): 688381560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 179, 180, 190, 228, 229, 285, 342, 358, 360, 380, 456, 458, 537, 570, 684, 687, 716, 760, 855, 895, 916, 1074, 1140, 1145, 1368, 1374, 1432, 1611, 1710, 1790, 1832, 2061, 2148, 2280, 2290, 2685, 2748, 3222, 3401, 3420, 3435, 3580, 4122, 4296, 4351, 4580, 5370, 5496, 6444, 6802, 6840, 6870, 7160, 8055, 8244, 8702, 9160, 10203, 10305, 10740, 12888, 13053, 13604, 13740, 16110, 16488, 17005, 17404, 20406, 20610, 21480, 21755, 26106, 27208, 27480, 30609, 32220, 34010, 34808, 39159, 40812, 40991, 41220, 43510, 51015, 52212, 61218, 64440, 65265, 68020, 78318, 81624, 81982, 82440, 87020, 102030, 104424, 122436, 122973, 130530, 136040, 153045, 156636, 163964, 174040, 195795, 204060, 204955, 244872, 245946, 261060, 306090, 313272, 327928, 368919, 391590, 408120, 409910, 491892, 522120, 612180, 614865, 737838, 778829, 783180, 819820, 983784, 1224360, 1229730, 1475676, 1557658, 1566360, 1639640, 1844595, 2336487, 2459460, 2951352, 3115316, 3689190, 3894145, 4672974, 4918920, 6230632, 7009461, 7378380, 7788290, 9345948, 11682435, 14018922, 14756760, 15576580, 18691896, 23364870, 28037844, 31153160, 35047305, 46729740, 56075688, 70094610, 93459480, 140189220, 280378440]

約数ペア:

[(1, 280378440), (2, 140189220), (3, 93459480), (4, 70094610), (5, 56075688), (6, 46729740), (8, 35047305), (9, 31153160), (10, 28037844), (12, 23364870), (15, 18691896), (18, 15576580), (19, 14756760), (20, 14018922), (24, 11682435), (30, 9345948), (36, 7788290), (38, 7378380), (40, 7009461), (45, 6230632), (57, 4918920), (60, 4672974), (72, 3894145), (76, 3689190), (90, 3115316), (95, 2951352), (114, 2459460), (120, 2336487), (152, 1844595), (171, 1639640), (179, 1566360), (180, 1557658), (190, 1475676), (228, 1229730), (229, 1224360), (285, 983784), (342, 819820), (358, 783180), (360, 778829), (380, 737838), (456, 614865), (458, 612180), (537, 522120), (570, 491892), (684, 409910), (687, 408120), (716, 391590), (760, 368919), (855, 327928), (895, 313272), (916, 306090), (1074, 261060), (1140, 245946), (1145, 244872), (1368, 204955), (1374, 204060), (1432, 195795), (1611, 174040), (1710, 163964), (1790, 156636), (1832, 153045), (2061, 136040), (2148, 130530), (2280, 122973), (2290, 122436), (2685, 104424), (2748, 102030), (3222, 87020), (3401, 82440), (3420, 81982), (3435, 81624), (3580, 78318), (4122, 68020), (4296, 65265), (4351, 64440), (4580, 61218), (5370, 52212), (5496, 51015), (6444, 43510), (6802, 41220), (6840, 40991), (6870, 40812), (7160, 39159), (8055, 34808), (8244, 34010), (8702, 32220), (9160, 30609), (10203, 27480), (10305, 27208), (10740, 26106), (12888, 21755), (13053, 21480), (13604, 20610), (13740, 20406), (16110, 17404), (16488, 17005)]