19654000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:371

約数の個数: 80

約数和(自身を含む): 49211136

約数和(自身を除く): 29557136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 155, 200, 248, 250, 310, 317, 400, 496, 500, 620, 634, 775, 1000, 1240, 1268, 1550, 1585, 2000, 2480, 2536, 3100, 3170, 3875, 5072, 6200, 6340, 7750, 7925, 9827, 12400, 12680, 15500, 15850, 19654, 25360, 31000, 31700, 39308, 39625, 49135, 62000, 63400, 78616, 79250, 98270, 126800, 157232, 158500, 196540, 245675, 317000, 393080, 491350, 634000, 786160, 982700, 1228375, 1965400, 2456750, 3930800, 4913500, 9827000, 19654000]

約数ペア:

[(1, 19654000), (2, 9827000), (4, 4913500), (5, 3930800), (8, 2456750), (10, 1965400), (16, 1228375), (20, 982700), (25, 786160), (31, 634000), (40, 491350), (50, 393080), (62, 317000), (80, 245675), (100, 196540), (124, 158500), (125, 157232), (155, 126800), (200, 98270), (248, 79250), (250, 78616), (310, 63400), (317, 62000), (400, 49135), (496, 39625), (500, 39308), (620, 31700), (634, 31000), (775, 25360), (1000, 19654), (1240, 15850), (1268, 15500), (1550, 12680), (1585, 12400), (2000, 9827), (2480, 7925), (2536, 7750), (3100, 6340), (3170, 6200), (3875, 5072)]