204970870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{569}}^1$

素因数の和:769

約数の個数: 64

約数和(自身を含む): 424025280

約数和(自身を除く): 219054410

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 163, 170, 221, 326, 442, 569, 815, 1105, 1138, 1630, 2119, 2210, 2771, 2845, 4238, 5542, 5690, 7397, 9673, 10595, 13855, 14794, 19346, 21190, 27710, 36023, 36985, 48365, 72046, 73970, 92747, 96730, 125749, 180115, 185494, 251498, 360230, 463735, 628745, 927470, 1205711, 1257490, 1576699, 2411422, 3153398, 6028555, 7883495, 12057110, 15766990, 20497087, 40994174, 102485435, 204970870]

約数ペア:

[(1, 204970870), (2, 102485435), (5, 40994174), (10, 20497087), (13, 15766990), (17, 12057110), (26, 7883495), (34, 6028555), (65, 3153398), (85, 2411422), (130, 1576699), (163, 1257490), (170, 1205711), (221, 927470), (326, 628745), (442, 463735), (569, 360230), (815, 251498), (1105, 185494), (1138, 180115), (1630, 125749), (2119, 96730), (2210, 92747), (2771, 73970), (2845, 72046), (4238, 48365), (5542, 36985), (5690, 36023), (7397, 27710), (9673, 21190), (10595, 19346), (13855, 14794)]