128401260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164617}}^1$

素因数の和:164642

約数の個数: 48

約数和(自身を含む): 387181536

約数和(自身を除く): 258780276

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 164617, 329234, 493851, 658468, 823085, 987702, 1646170, 1975404, 2140021, 2469255, 3292340, 4280042, 4938510, 6420063, 8560084, 9877020, 10700105, 12840126, 21400210, 25680252, 32100315, 42800420, 64200630, 128401260]

約数ペア:

[(1, 128401260), (2, 64200630), (3, 42800420), (4, 32100315), (5, 25680252), (6, 21400210), (10, 12840126), (12, 10700105), (13, 9877020), (15, 8560084), (20, 6420063), (26, 4938510), (30, 4280042), (39, 3292340), (52, 2469255), (60, 2140021), (65, 1975404), (78, 1646170), (130, 987702), (156, 823085), (195, 658468), (260, 493851), (390, 329234), (780, 164617)]