81417920

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:218

約数の個数: 112

約数和(自身を含む): 203716128

約数和(自身を除く): 122298208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 61, 64, 80, 86, 97, 122, 160, 172, 194, 215, 244, 305, 320, 344, 388, 430, 485, 488, 610, 688, 776, 860, 970, 976, 1220, 1376, 1552, 1720, 1940, 1952, 2440, 2623, 2752, 3104, 3440, 3880, 3904, 4171, 4880, 5246, 5917, 6208, 6880, 7760, 8342, 9760, 10492, 11834, 13115, 13760, 15520, 16684, 19520, 20855, 20984, 23668, 26230, 29585, 31040, 33368, 41710, 41968, 47336, 52460, 59170, 66736, 83420, 83936, 94672, 104920, 118340, 133472, 166840, 167872, 189344, 209840, 236680, 254431, 266944, 333680, 378688, 419680, 473360, 508862, 667360, 839360, 946720, 1017724, 1272155, 1334720, 1893440, 2035448, 2544310, 4070896, 5088620, 8141792, 10177240, 16283584, 20354480, 40708960, 81417920]

約数ペア:

[(1, 81417920), (2, 40708960), (4, 20354480), (5, 16283584), (8, 10177240), (10, 8141792), (16, 5088620), (20, 4070896), (32, 2544310), (40, 2035448), (43, 1893440), (61, 1334720), (64, 1272155), (80, 1017724), (86, 946720), (97, 839360), (122, 667360), (160, 508862), (172, 473360), (194, 419680), (215, 378688), (244, 333680), (305, 266944), (320, 254431), (344, 236680), (388, 209840), (430, 189344), (485, 167872), (488, 166840), (610, 133472), (688, 118340), (776, 104920), (860, 94672), (970, 83936), (976, 83420), (1220, 66736), (1376, 59170), (1552, 52460), (1720, 47336), (1940, 41968), (1952, 41710), (2440, 33368), (2623, 31040), (2752, 29585), (3104, 26230), (3440, 23668), (3880, 20984), (3904, 20855), (4171, 19520), (4880, 16684), (5246, 15520), (5917, 13760), (6208, 13115), (6880, 11834), (7760, 10492), (8342, 9760)]