198687680

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20029}}^1$

素因数の和:20077

約数の個数: 56

約数和(自身を含む): 488411520

約数和(自身を除く): 289723840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 20029, 40058, 80116, 100145, 160232, 200290, 320464, 400580, 620899, 640928, 801160, 1241798, 1281856, 1602320, 2483596, 3104495, 3204640, 4967192, 6208990, 6409280, 9934384, 12417980, 19868768, 24835960, 39737536, 49671920, 99343840, 198687680]

約数ペア:

[(1, 198687680), (2, 99343840), (4, 49671920), (5, 39737536), (8, 24835960), (10, 19868768), (16, 12417980), (20, 9934384), (31, 6409280), (32, 6208990), (40, 4967192), (62, 3204640), (64, 3104495), (80, 2483596), (124, 1602320), (155, 1281856), (160, 1241798), (248, 801160), (310, 640928), (320, 620899), (496, 400580), (620, 320464), (992, 200290), (1240, 160232), (1984, 100145), (2480, 80116), (4960, 40058), (9920, 20029)]