131437980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{1297}}^1$

素因数の和:1875

約数の個数: 72

約数和(自身を含む): 399711312

約数和(自身を除く): 268273332

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 563, 1126, 1297, 1689, 2252, 2594, 2815, 3378, 3891, 5067, 5188, 5630, 6485, 6756, 7782, 8445, 10134, 11260, 11673, 12970, 15564, 16890, 19455, 20268, 23346, 25335, 25940, 33780, 38910, 46692, 50670, 58365, 77820, 101340, 116730, 233460, 730211, 1460422, 2190633, 2920844, 3651055, 4381266, 6571899, 7302110, 8762532, 10953165, 13143798, 14604220, 21906330, 26287596, 32859495, 43812660, 65718990, 131437980]

約数ペア:

[(1, 131437980), (2, 65718990), (3, 43812660), (4, 32859495), (5, 26287596), (6, 21906330), (9, 14604220), (10, 13143798), (12, 10953165), (15, 8762532), (18, 7302110), (20, 6571899), (30, 4381266), (36, 3651055), (45, 2920844), (60, 2190633), (90, 1460422), (180, 730211), (563, 233460), (1126, 116730), (1297, 101340), (1689, 77820), (2252, 58365), (2594, 50670), (2815, 46692), (3378, 38910), (3891, 33780), (5067, 25940), (5188, 25335), (5630, 23346), (6485, 20268), (6756, 19455), (7782, 16890), (8445, 15564), (10134, 12970), (11260, 11673)]