1940691640

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{383}}^1\times {\mathrm{967}}^1$

素因数の和:1492

約数の個数: 64

約数和(自身を含む): 4415938560

約数和(自身を除く): 2475246920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 383, 524, 655, 766, 967, 1048, 1310, 1532, 1915, 1934, 2620, 3064, 3830, 3868, 4835, 5240, 7660, 7736, 9670, 15320, 19340, 38680, 50173, 100346, 126677, 200692, 250865, 253354, 370361, 401384, 501730, 506708, 633385, 740722, 1003460, 1013416, 1266770, 1481444, 1851805, 2006920, 2533540, 2962888, 3703610, 5067080, 7407220, 14814440, 48517291, 97034582, 194069164, 242586455, 388138328, 485172910, 970345820, 1940691640]

約数ペア:

[(1, 1940691640), (2, 970345820), (4, 485172910), (5, 388138328), (8, 242586455), (10, 194069164), (20, 97034582), (40, 48517291), (131, 14814440), (262, 7407220), (383, 5067080), (524, 3703610), (655, 2962888), (766, 2533540), (967, 2006920), (1048, 1851805), (1310, 1481444), (1532, 1266770), (1915, 1013416), (1934, 1003460), (2620, 740722), (3064, 633385), (3830, 506708), (3868, 501730), (4835, 401384), (5240, 370361), (7660, 253354), (7736, 250865), (9670, 200692), (15320, 126677), (19340, 100346), (38680, 50173)]