2018601040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{13691}}^1$

素因数の和:13820

約数の個数: 80

約数和(自身を含む): 4991555520

約数和(自身を除く): 2972954480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 97, 152, 190, 194, 304, 380, 388, 485, 760, 776, 970, 1520, 1552, 1843, 1940, 3686, 3880, 7372, 7760, 9215, 13691, 14744, 18430, 27382, 29488, 36860, 54764, 68455, 73720, 109528, 136910, 147440, 219056, 260129, 273820, 520258, 547640, 1040516, 1095280, 1300645, 1328027, 2081032, 2601290, 2656054, 4162064, 5202580, 5312108, 6640135, 10405160, 10624216, 13280270, 20810320, 21248432, 25232513, 26560540, 50465026, 53121080, 100930052, 106242160, 126162565, 201860104, 252325130, 403720208, 504650260, 1009300520, 2018601040]

約数ペア:

[(1, 2018601040), (2, 1009300520), (4, 504650260), (5, 403720208), (8, 252325130), (10, 201860104), (16, 126162565), (19, 106242160), (20, 100930052), (38, 53121080), (40, 50465026), (76, 26560540), (80, 25232513), (95, 21248432), (97, 20810320), (152, 13280270), (190, 10624216), (194, 10405160), (304, 6640135), (380, 5312108), (388, 5202580), (485, 4162064), (760, 2656054), (776, 2601290), (970, 2081032), (1520, 1328027), (1552, 1300645), (1843, 1095280), (1940, 1040516), (3686, 547640), (3880, 520258), (7372, 273820), (7760, 260129), (9215, 219056), (13691, 147440), (14744, 136910), (18430, 109528), (27382, 73720), (29488, 68455), (36860, 54764)]