256252360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:240

約数の個数: 192

約数和(自身を含む): 736873200

約数和(自身を除く): 480620840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 89, 91, 98, 104, 113, 130, 140, 178, 182, 196, 226, 245, 260, 280, 356, 364, 392, 445, 452, 455, 490, 520, 565, 623, 637, 712, 728, 791, 890, 904, 910, 980, 1130, 1157, 1246, 1274, 1469, 1582, 1780, 1820, 1960, 2260, 2314, 2492, 2548, 2938, 3115, 3164, 3185, 3560, 3640, 3955, 4361, 4520, 4628, 4984, 5096, 5537, 5785, 5876, 6230, 6328, 6370, 7345, 7910, 8099, 8722, 9256, 10057, 10283, 11074, 11570, 11752, 12460, 12740, 14690, 15820, 16198, 17444, 20114, 20566, 21805, 22148, 23140, 24920, 25480, 27685, 29380, 31640, 32396, 34888, 40228, 40495, 41132, 43610, 44296, 46280, 50285, 51415, 55370, 56693, 58760, 64792, 70399, 71981, 80456, 80990, 82264, 87220, 100570, 102830, 110740, 113386, 130741, 140798, 143962, 161980, 174440, 201140, 205660, 221480, 226772, 261482, 281596, 283465, 287924, 323960, 351995, 359905, 402280, 411320, 453544, 492793, 522964, 563192, 566930, 575848, 653705, 703990, 719810, 915187, 985586, 1045928, 1133860, 1307410, 1407980, 1439620, 1830374, 1971172, 2267720, 2463965, 2614820, 2815960, 2879240, 3660748, 3942344, 4575935, 4927930, 5229640, 6406309, 7321496, 9151870, 9855860, 12812618, 18303740, 19711720, 25625236, 32031545, 36607480, 51250472, 64063090, 128126180, 256252360]

約数ペア:

[(1, 256252360), (2, 128126180), (4, 64063090), (5, 51250472), (7, 36607480), (8, 32031545), (10, 25625236), (13, 19711720), (14, 18303740), (20, 12812618), (26, 9855860), (28, 9151870), (35, 7321496), (40, 6406309), (49, 5229640), (52, 4927930), (56, 4575935), (65, 3942344), (70, 3660748), (89, 2879240), (91, 2815960), (98, 2614820), (104, 2463965), (113, 2267720), (130, 1971172), (140, 1830374), (178, 1439620), (182, 1407980), (196, 1307410), (226, 1133860), (245, 1045928), (260, 985586), (280, 915187), (356, 719810), (364, 703990), (392, 653705), (445, 575848), (452, 566930), (455, 563192), (490, 522964), (520, 492793), (565, 453544), (623, 411320), (637, 402280), (712, 359905), (728, 351995), (791, 323960), (890, 287924), (904, 283465), (910, 281596), (980, 261482), (1130, 226772), (1157, 221480), (1246, 205660), (1274, 201140), (1469, 174440), (1582, 161980), (1780, 143962), (1820, 140798), (1960, 130741), (2260, 113386), (2314, 110740), (2492, 102830), (2548, 100570), (2938, 87220), (3115, 82264), (3164, 80990), (3185, 80456), (3560, 71981), (3640, 70399), (3955, 64792), (4361, 58760), (4520, 56693), (4628, 55370), (4984, 51415), (5096, 50285), (5537, 46280), (5785, 44296), (5876, 43610), (6230, 41132), (6328, 40495), (6370, 40228), (7345, 34888), (7910, 32396), (8099, 31640), (8722, 29380), (9256, 27685), (10057, 25480), (10283, 24920), (11074, 23140), (11570, 22148), (11752, 21805), (12460, 20566), (12740, 20114), (14690, 17444), (15820, 16198)]