989287240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{7879}}^1$

素因数の和:8006

約数の個数: 64

約数和(自身を含む): 2309155200

約数和(自身を除く): 1319867960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 73, 86, 146, 172, 215, 292, 344, 365, 430, 584, 730, 860, 1460, 1720, 2920, 3139, 6278, 7879, 12556, 15695, 15758, 25112, 31390, 31516, 39395, 62780, 63032, 78790, 125560, 157580, 315160, 338797, 575167, 677594, 1150334, 1355188, 1693985, 2300668, 2710376, 2875835, 3387970, 4601336, 5751670, 6775940, 11503340, 13551880, 23006680, 24732181, 49464362, 98928724, 123660905, 197857448, 247321810, 494643620, 989287240]

約数ペア:

[(1, 989287240), (2, 494643620), (4, 247321810), (5, 197857448), (8, 123660905), (10, 98928724), (20, 49464362), (40, 24732181), (43, 23006680), (73, 13551880), (86, 11503340), (146, 6775940), (172, 5751670), (215, 4601336), (292, 3387970), (344, 2875835), (365, 2710376), (430, 2300668), (584, 1693985), (730, 1355188), (860, 1150334), (1460, 677594), (1720, 575167), (2920, 338797), (3139, 315160), (6278, 157580), (7879, 125560), (12556, 78790), (15695, 63032), (15758, 62780), (25112, 39395), (31390, 31516)]