55817980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 121879296

約数和(自身を除く): 66061316

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 197, 310, 394, 457, 620, 788, 914, 985, 1828, 1970, 2285, 3940, 4570, 6107, 9140, 12214, 14167, 24428, 28334, 30535, 56668, 61070, 70835, 90029, 122140, 141670, 180058, 283340, 360116, 450145, 900290, 1800580, 2790899, 5581798, 11163596, 13954495, 27908990, 55817980]

約数ペア:

[(1, 55817980), (2, 27908990), (4, 13954495), (5, 11163596), (10, 5581798), (20, 2790899), (31, 1800580), (62, 900290), (124, 450145), (155, 360116), (197, 283340), (310, 180058), (394, 141670), (457, 122140), (620, 90029), (788, 70835), (914, 61070), (985, 56668), (1828, 30535), (1970, 28334), (2285, 24428), (3940, 14167), (4570, 12214), (6107, 9140)]