25908340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{421}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 58063824

約数和(自身を除く): 32155484

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 181, 340, 362, 421, 724, 842, 905, 1684, 1810, 2105, 3077, 3620, 4210, 6154, 7157, 8420, 12308, 14314, 15385, 28628, 30770, 35785, 61540, 71570, 76201, 143140, 152402, 304804, 381005, 762010, 1295417, 1524020, 2590834, 5181668, 6477085, 12954170, 25908340]

約数ペア:

[(1, 25908340), (2, 12954170), (4, 6477085), (5, 5181668), (10, 2590834), (17, 1524020), (20, 1295417), (34, 762010), (68, 381005), (85, 304804), (170, 152402), (181, 143140), (340, 76201), (362, 71570), (421, 61540), (724, 35785), (842, 30770), (905, 28628), (1684, 15385), (1810, 14314), (2105, 12308), (3077, 8420), (3620, 7157), (4210, 6154)]