221709640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{1459}}^1$

素因数の和:1630

約数の個数: 64

約数和(自身を含む): 520344000

約数和(自身を除く): 298634360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 131, 145, 232, 262, 290, 524, 580, 655, 1048, 1160, 1310, 1459, 2620, 2918, 3799, 5240, 5836, 7295, 7598, 11672, 14590, 15196, 18995, 29180, 30392, 37990, 42311, 58360, 75980, 84622, 151960, 169244, 191129, 211555, 338488, 382258, 423110, 764516, 846220, 955645, 1529032, 1692440, 1911290, 3822580, 5542741, 7645160, 11085482, 22170964, 27713705, 44341928, 55427410, 110854820, 221709640]

約数ペア:

[(1, 221709640), (2, 110854820), (4, 55427410), (5, 44341928), (8, 27713705), (10, 22170964), (20, 11085482), (29, 7645160), (40, 5542741), (58, 3822580), (116, 1911290), (131, 1692440), (145, 1529032), (232, 955645), (262, 846220), (290, 764516), (524, 423110), (580, 382258), (655, 338488), (1048, 211555), (1160, 191129), (1310, 169244), (1459, 151960), (2620, 84622), (2918, 75980), (3799, 58360), (5240, 42311), (5836, 37990), (7295, 30392), (7598, 29180), (11672, 18995), (14590, 15196)]