21907079600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{20113}}^1$

素因数の和:20527

約数の個数: 120

約数和(自身を含む): 60308208480

約数和(自身を除く): 38401128880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 389, 400, 560, 700, 778, 1400, 1556, 1945, 2723, 2800, 3112, 3890, 5446, 6224, 7780, 9725, 10892, 13615, 15560, 19450, 20113, 21784, 27230, 31120, 38900, 40226, 43568, 54460, 68075, 77800, 80452, 100565, 108920, 136150, 140791, 155600, 160904, 201130, 217840, 272300, 281582, 321808, 402260, 502825, 544600, 563164, 703955, 804520, 1005650, 1089200, 1126328, 1407910, 1609040, 2011300, 2252656, 2815820, 3519775, 4022600, 5631640, 7039550, 7823957, 8045200, 11263280, 14079100, 15647914, 28158200, 31295828, 39119785, 54767699, 56316400, 62591656, 78239570, 109535398, 125183312, 156479140, 195598925, 219070796, 273838495, 312958280, 391197850, 438141592, 547676990, 625916560, 782395700, 876283184, 1095353980, 1369192475, 1564791400, 2190707960, 2738384950, 3129582800, 4381415920, 5476769900, 10953539800, 21907079600]

約数ペア:

[(1, 21907079600), (2, 10953539800), (4, 5476769900), (5, 4381415920), (7, 3129582800), (8, 2738384950), (10, 2190707960), (14, 1564791400), (16, 1369192475), (20, 1095353980), (25, 876283184), (28, 782395700), (35, 625916560), (40, 547676990), (50, 438141592), (56, 391197850), (70, 312958280), (80, 273838495), (100, 219070796), (112, 195598925), (140, 156479140), (175, 125183312), (200, 109535398), (280, 78239570), (350, 62591656), (389, 56316400), (400, 54767699), (560, 39119785), (700, 31295828), (778, 28158200), (1400, 15647914), (1556, 14079100), (1945, 11263280), (2723, 8045200), (2800, 7823957), (3112, 7039550), (3890, 5631640), (5446, 4022600), (6224, 3519775), (7780, 2815820), (9725, 2252656), (10892, 2011300), (13615, 1609040), (15560, 1407910), (19450, 1126328), (20113, 1089200), (21784, 1005650), (27230, 804520), (31120, 703955), (38900, 563164), (40226, 544600), (43568, 502825), (54460, 402260), (68075, 321808), (77800, 281582), (80452, 272300), (100565, 217840), (108920, 201130), (136150, 160904), (140791, 155600)]