38900420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{677}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 93799944

約数和(自身を除く): 54899524

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 260, 338, 340, 442, 676, 677, 845, 884, 1105, 1354, 1690, 2210, 2708, 2873, 3380, 3385, 4420, 5746, 6770, 8801, 11492, 11509, 13540, 14365, 17602, 23018, 28730, 35204, 44005, 46036, 57460, 57545, 88010, 114413, 115090, 149617, 176020, 228826, 230180, 299234, 457652, 572065, 598468, 748085, 1144130, 1496170, 1945021, 2288260, 2992340, 3890042, 7780084, 9725105, 19450210, 38900420]

約数ペア:

[(1, 38900420), (2, 19450210), (4, 9725105), (5, 7780084), (10, 3890042), (13, 2992340), (17, 2288260), (20, 1945021), (26, 1496170), (34, 1144130), (52, 748085), (65, 598468), (68, 572065), (85, 457652), (130, 299234), (169, 230180), (170, 228826), (221, 176020), (260, 149617), (338, 115090), (340, 114413), (442, 88010), (676, 57545), (677, 57460), (845, 46036), (884, 44005), (1105, 35204), (1354, 28730), (1690, 23018), (2210, 17602), (2708, 14365), (2873, 13540), (3380, 11509), (3385, 11492), (4420, 8801), (5746, 6770)]