78111280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:171

約数の個数: 160

約数和(自身を含む): 212486400

約数和(自身を除く): 134375120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 59, 65, 67, 76, 80, 95, 104, 118, 130, 134, 152, 190, 208, 236, 247, 260, 268, 295, 304, 335, 380, 472, 494, 520, 536, 590, 670, 760, 767, 871, 944, 988, 1040, 1072, 1121, 1180, 1235, 1273, 1340, 1520, 1534, 1742, 1976, 2242, 2360, 2470, 2546, 2680, 3068, 3484, 3835, 3952, 3953, 4355, 4484, 4720, 4940, 5092, 5360, 5605, 6136, 6365, 6968, 7670, 7906, 8710, 8968, 9880, 10184, 11210, 12272, 12730, 13936, 14573, 15340, 15812, 16549, 17420, 17936, 19760, 19765, 20368, 22420, 25460, 29146, 30680, 31624, 33098, 34840, 39530, 44840, 50920, 51389, 58292, 61360, 63248, 66196, 69680, 72865, 75107, 79060, 82745, 89680, 101840, 102778, 116584, 132392, 145730, 150214, 158120, 165490, 205556, 233168, 256945, 264784, 291460, 300428, 316240, 330980, 375535, 411112, 513890, 582920, 600856, 661960, 751070, 822224, 976391, 1027780, 1165840, 1201712, 1323920, 1502140, 1952782, 2055560, 3004280, 3905564, 4111120, 4881955, 6008560, 7811128, 9763910, 15622256, 19527820, 39055640, 78111280]

約数ペア:

[(1, 78111280), (2, 39055640), (4, 19527820), (5, 15622256), (8, 9763910), (10, 7811128), (13, 6008560), (16, 4881955), (19, 4111120), (20, 3905564), (26, 3004280), (38, 2055560), (40, 1952782), (52, 1502140), (59, 1323920), (65, 1201712), (67, 1165840), (76, 1027780), (80, 976391), (95, 822224), (104, 751070), (118, 661960), (130, 600856), (134, 582920), (152, 513890), (190, 411112), (208, 375535), (236, 330980), (247, 316240), (260, 300428), (268, 291460), (295, 264784), (304, 256945), (335, 233168), (380, 205556), (472, 165490), (494, 158120), (520, 150214), (536, 145730), (590, 132392), (670, 116584), (760, 102778), (767, 101840), (871, 89680), (944, 82745), (988, 79060), (1040, 75107), (1072, 72865), (1121, 69680), (1180, 66196), (1235, 63248), (1273, 61360), (1340, 58292), (1520, 51389), (1534, 50920), (1742, 44840), (1976, 39530), (2242, 34840), (2360, 33098), (2470, 31624), (2546, 30680), (2680, 29146), (3068, 25460), (3484, 22420), (3835, 20368), (3952, 19765), (3953, 19760), (4355, 17936), (4484, 17420), (4720, 16549), (4940, 15812), (5092, 15340), (5360, 14573), (5605, 13936), (6136, 12730), (6365, 12272), (6968, 11210), (7670, 10184), (7906, 9880), (8710, 8968)]