2912281880

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1\times {\mathrm{2003}}^1$

素因数の和:2400

約数の個数: 64

約数和(自身を含む): 6625704960

約数和(自身を除く): 3713423080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 223, 326, 446, 652, 815, 892, 1115, 1304, 1630, 1784, 2003, 2230, 3260, 4006, 4460, 6520, 8012, 8920, 10015, 16024, 20030, 36349, 40060, 72698, 80120, 145396, 181745, 290792, 326489, 363490, 446669, 652978, 726980, 893338, 1305956, 1453960, 1632445, 1786676, 2233345, 2611912, 3264890, 3573352, 4466690, 6529780, 8933380, 13059560, 17866760, 72807047, 145614094, 291228188, 364035235, 582456376, 728070470, 1456140940, 2912281880]

約数ペア:

[(1, 2912281880), (2, 1456140940), (4, 728070470), (5, 582456376), (8, 364035235), (10, 291228188), (20, 145614094), (40, 72807047), (163, 17866760), (223, 13059560), (326, 8933380), (446, 6529780), (652, 4466690), (815, 3573352), (892, 3264890), (1115, 2611912), (1304, 2233345), (1630, 1786676), (1784, 1632445), (2003, 1453960), (2230, 1305956), (3260, 893338), (4006, 726980), (4460, 652978), (6520, 446669), (8012, 363490), (8920, 326489), (10015, 290792), (16024, 181745), (20030, 145396), (36349, 80120), (40060, 72698)]