638038544

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1129}}^1$

素因数の和:1193

約数の個数: 120

約数和(自身を含む): 1538517600

約数和(自身を除く): 900479056

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 169, 176, 208, 209, 247, 286, 304, 338, 418, 494, 572, 676, 836, 988, 1129, 1144, 1352, 1672, 1859, 1976, 2258, 2288, 2704, 2717, 3211, 3344, 3718, 3952, 4516, 5434, 6422, 7436, 9032, 10868, 12419, 12844, 14677, 14872, 18064, 21451, 21736, 24838, 25688, 29354, 29744, 35321, 42902, 43472, 49676, 51376, 58708, 70642, 85804, 99352, 117416, 141284, 161447, 171608, 190801, 198704, 234832, 235961, 278863, 282568, 322894, 343216, 381602, 471922, 557726, 565136, 645788, 763204, 943844, 1115452, 1291576, 1526408, 1887688, 2098811, 2230904, 2583152, 3052816, 3067493, 3625219, 3775376, 4197622, 4461808, 6134986, 7250438, 8395244, 12269972, 14500876, 16790488, 24539944, 29001752, 33580976, 39877409, 49079888, 58003504, 79754818, 159509636, 319019272, 638038544]

約数ペア:

[(1, 638038544), (2, 319019272), (4, 159509636), (8, 79754818), (11, 58003504), (13, 49079888), (16, 39877409), (19, 33580976), (22, 29001752), (26, 24539944), (38, 16790488), (44, 14500876), (52, 12269972), (76, 8395244), (88, 7250438), (104, 6134986), (143, 4461808), (152, 4197622), (169, 3775376), (176, 3625219), (208, 3067493), (209, 3052816), (247, 2583152), (286, 2230904), (304, 2098811), (338, 1887688), (418, 1526408), (494, 1291576), (572, 1115452), (676, 943844), (836, 763204), (988, 645788), (1129, 565136), (1144, 557726), (1352, 471922), (1672, 381602), (1859, 343216), (1976, 322894), (2258, 282568), (2288, 278863), (2704, 235961), (2717, 234832), (3211, 198704), (3344, 190801), (3718, 171608), (3952, 161447), (4516, 141284), (5434, 117416), (6422, 99352), (7436, 85804), (9032, 70642), (10868, 58708), (12419, 51376), (12844, 49676), (14677, 43472), (14872, 42902), (18064, 35321), (21451, 29744), (21736, 29354), (24838, 25688)]