490695790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2141}}^1$

素因数の和:2245

約数の個数: 64

約数和(自身を含む): 997520832

約数和(自身を除く): 506825042

約数列:

[1, 2, 5, 10, 13, 26, 41, 43, 65, 82, 86, 130, 205, 215, 410, 430, 533, 559, 1066, 1118, 1763, 2141, 2665, 2795, 3526, 4282, 5330, 5590, 8815, 10705, 17630, 21410, 22919, 27833, 45838, 55666, 87781, 92063, 114595, 139165, 175562, 184126, 229190, 278330, 438905, 460315, 877810, 920630, 1141153, 1196819, 2282306, 2393638, 3774583, 5705765, 5984095, 7549166, 11411530, 11968190, 18872915, 37745830, 49069579, 98139158, 245347895, 490695790]

約数ペア:

[(1, 490695790), (2, 245347895), (5, 98139158), (10, 49069579), (13, 37745830), (26, 18872915), (41, 11968190), (43, 11411530), (65, 7549166), (82, 5984095), (86, 5705765), (130, 3774583), (205, 2393638), (215, 2282306), (410, 1196819), (430, 1141153), (533, 920630), (559, 877810), (1066, 460315), (1118, 438905), (1763, 278330), (2141, 229190), (2665, 184126), (2795, 175562), (3526, 139165), (4282, 114595), (5330, 92063), (5590, 87781), (8815, 55666), (10705, 45838), (17630, 27833), (21410, 22919)]