619589620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{125423}}^1$

素因数の和:125464

約数の個数: 48

約数和(自身を含む): 1474986240

約数和(自身を除く): 855396620

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 125423, 250846, 501692, 627115, 1254230, 1630499, 2383037, 2508460, 3260998, 4766074, 6521996, 8152495, 9532148, 11915185, 16304990, 23830370, 30979481, 32609980, 47660740, 61958962, 123917924, 154897405, 309794810, 619589620]

約数ペア:

[(1, 619589620), (2, 309794810), (4, 154897405), (5, 123917924), (10, 61958962), (13, 47660740), (19, 32609980), (20, 30979481), (26, 23830370), (38, 16304990), (52, 11915185), (65, 9532148), (76, 8152495), (95, 6521996), (130, 4766074), (190, 3260998), (247, 2508460), (260, 2383037), (380, 1630499), (494, 1254230), (988, 627115), (1235, 501692), (2470, 250846), (4940, 125423)]