20181267664

素因数分解:

$2^4\times {\mathrm{17}}^3\times {\mathrm{139}}^1\times {\mathrm{1847}}^1$

素因数の和:2045

約数の個数: 80

約数和(自身を含む): 41866070400

約数和(自身を除く): 21684802736

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 139, 272, 278, 289, 556, 578, 1112, 1156, 1847, 2224, 2312, 2363, 3694, 4624, 4726, 4913, 7388, 9452, 9826, 14776, 18904, 19652, 29552, 31399, 37808, 39304, 40171, 62798, 78608, 80342, 125596, 160684, 251192, 256733, 321368, 502384, 513466, 533783, 642736, 682907, 1026932, 1067566, 1365814, 2053864, 2135132, 2731628, 4107728, 4270264, 4364461, 5463256, 8540528, 8728922, 9074311, 10926512, 17457844, 18148622, 34915688, 36297244, 69831376, 72594488, 74195837, 145188976, 148391674, 296783348, 593566696, 1187133392, 1261329229, 2522658458, 5045316916, 10090633832, 20181267664]

約数ペア:

[(1, 20181267664), (2, 10090633832), (4, 5045316916), (8, 2522658458), (16, 1261329229), (17, 1187133392), (34, 593566696), (68, 296783348), (136, 148391674), (139, 145188976), (272, 74195837), (278, 72594488), (289, 69831376), (556, 36297244), (578, 34915688), (1112, 18148622), (1156, 17457844), (1847, 10926512), (2224, 9074311), (2312, 8728922), (2363, 8540528), (3694, 5463256), (4624, 4364461), (4726, 4270264), (4913, 4107728), (7388, 2731628), (9452, 2135132), (9826, 2053864), (14776, 1365814), (18904, 1067566), (19652, 1026932), (29552, 682907), (31399, 642736), (37808, 533783), (39304, 513466), (40171, 502384), (62798, 321368), (78608, 256733), (80342, 251192), (125596, 160684)]