165989480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{277}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 381905280

約数和(自身を除く): 215915800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 211, 277, 284, 355, 422, 554, 568, 710, 844, 1055, 1108, 1385, 1420, 1688, 2110, 2216, 2770, 2840, 4220, 5540, 8440, 11080, 14981, 19667, 29962, 39334, 58447, 59924, 74905, 78668, 98335, 116894, 119848, 149810, 157336, 196670, 233788, 292235, 299620, 393340, 467576, 584470, 599240, 786680, 1168940, 2337880, 4149737, 8299474, 16598948, 20748685, 33197896, 41497370, 82994740, 165989480]

約数ペア:

[(1, 165989480), (2, 82994740), (4, 41497370), (5, 33197896), (8, 20748685), (10, 16598948), (20, 8299474), (40, 4149737), (71, 2337880), (142, 1168940), (211, 786680), (277, 599240), (284, 584470), (355, 467576), (422, 393340), (554, 299620), (568, 292235), (710, 233788), (844, 196670), (1055, 157336), (1108, 149810), (1385, 119848), (1420, 116894), (1688, 98335), (2110, 78668), (2216, 74905), (2770, 59924), (2840, 58447), (4220, 39334), (5540, 29962), (8440, 19667), (11080, 14981)]