305557020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{23909}}^1$

素因数の和:23995

約数の個数: 72

約数和(自身を含む): 939949920

約数和(自身を除く): 634392900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 23909, 47818, 71727, 95636, 119545, 143454, 215181, 239090, 286908, 358635, 430362, 478180, 717270, 860724, 1075905, 1434540, 1697539, 2151810, 3395078, 4303620, 5092617, 6790156, 8487695, 10185234, 15277851, 16975390, 20370468, 25463085, 30555702, 33950780, 50926170, 61111404, 76389255, 101852340, 152778510, 305557020]

約数ペア:

[(1, 305557020), (2, 152778510), (3, 101852340), (4, 76389255), (5, 61111404), (6, 50926170), (9, 33950780), (10, 30555702), (12, 25463085), (15, 20370468), (18, 16975390), (20, 15277851), (30, 10185234), (36, 8487695), (45, 6790156), (60, 5092617), (71, 4303620), (90, 3395078), (142, 2151810), (180, 1697539), (213, 1434540), (284, 1075905), (355, 860724), (426, 717270), (639, 478180), (710, 430362), (852, 358635), (1065, 286908), (1278, 239090), (1420, 215181), (2130, 143454), (2556, 119545), (3195, 95636), (4260, 71727), (6390, 47818), (12780, 23909)]