77856080

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:316

約数の個数: 80

約数和(自身を含む): 186654720

約数和(自身を除く): 108798640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 97, 127, 158, 194, 254, 316, 388, 395, 485, 508, 632, 635, 776, 790, 970, 1016, 1264, 1270, 1552, 1580, 1940, 2032, 2540, 3160, 3880, 5080, 6320, 7663, 7760, 10033, 10160, 12319, 15326, 20066, 24638, 30652, 38315, 40132, 49276, 50165, 61304, 61595, 76630, 80264, 98552, 100330, 122608, 123190, 153260, 160528, 197104, 200660, 246380, 306520, 401320, 492760, 613040, 802640, 973201, 985520, 1946402, 3892804, 4866005, 7785608, 9732010, 15571216, 19464020, 38928040, 77856080]

約数ペア:

[(1, 77856080), (2, 38928040), (4, 19464020), (5, 15571216), (8, 9732010), (10, 7785608), (16, 4866005), (20, 3892804), (40, 1946402), (79, 985520), (80, 973201), (97, 802640), (127, 613040), (158, 492760), (194, 401320), (254, 306520), (316, 246380), (388, 200660), (395, 197104), (485, 160528), (508, 153260), (632, 123190), (635, 122608), (776, 100330), (790, 98552), (970, 80264), (1016, 76630), (1264, 61595), (1270, 61304), (1552, 50165), (1580, 49276), (1940, 40132), (2032, 38315), (2540, 30652), (3160, 24638), (3880, 20066), (5080, 15326), (6320, 12319), (7663, 10160), (7760, 10033)]