399379889200

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{359}}^1\times {\mathrm{64679}}^1$

素因数の和:65099

約数の個数: 120

約数和(自身を含む): 984574483200

約数和(自身を除く): 585194594000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 200, 215, 344, 359, 400, 430, 688, 718, 860, 1075, 1436, 1720, 1795, 2150, 2872, 3440, 3590, 4300, 5744, 7180, 8600, 8975, 14360, 15437, 17200, 17950, 28720, 30874, 35900, 61748, 64679, 71800, 77185, 123496, 129358, 143600, 154370, 246992, 258716, 308740, 323395, 385925, 517432, 617480, 646790, 771850, 1034864, 1234960, 1293580, 1543700, 1616975, 2587160, 2781197, 3087400, 3233950, 5174320, 5562394, 6174800, 6467900, 11124788, 12935800, 13905985, 22249576, 23219761, 25871600, 27811970, 44499152, 46439522, 55623940, 69529925, 92879044, 111247880, 116098805, 139059850, 185758088, 222495760, 232197610, 278119700, 371516176, 464395220, 556239400, 580494025, 928790440, 998449723, 1112478800, 1160988050, 1857580880, 1996899446, 2321976100, 3993798892, 4643952200, 4992248615, 7987597784, 9287904400, 9984497230, 15975195568, 19968994460, 24961243075, 39937988920, 49922486150, 79875977840, 99844972300, 199689944600, 399379889200]

約数ペア:

[(1, 399379889200), (2, 199689944600), (4, 99844972300), (5, 79875977840), (8, 49922486150), (10, 39937988920), (16, 24961243075), (20, 19968994460), (25, 15975195568), (40, 9984497230), (43, 9287904400), (50, 7987597784), (80, 4992248615), (86, 4643952200), (100, 3993798892), (172, 2321976100), (200, 1996899446), (215, 1857580880), (344, 1160988050), (359, 1112478800), (400, 998449723), (430, 928790440), (688, 580494025), (718, 556239400), (860, 464395220), (1075, 371516176), (1436, 278119700), (1720, 232197610), (1795, 222495760), (2150, 185758088), (2872, 139059850), (3440, 116098805), (3590, 111247880), (4300, 92879044), (5744, 69529925), (7180, 55623940), (8600, 46439522), (8975, 44499152), (14360, 27811970), (15437, 25871600), (17200, 23219761), (17950, 22249576), (28720, 13905985), (30874, 12935800), (35900, 11124788), (61748, 6467900), (64679, 6174800), (71800, 5562394), (77185, 5174320), (123496, 3233950), (129358, 3087400), (143600, 2781197), (154370, 2587160), (246992, 1616975), (258716, 1543700), (308740, 1293580), (323395, 1234960), (385925, 1034864), (517432, 771850), (617480, 646790)]