25237660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2539}}^1$

素因数の和:2626

約数の個数: 48

約数和(自身を含む): 61447680

約数和(自身を除く): 36210020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 2539, 4970, 5078, 9940, 10156, 12695, 17773, 25390, 35546, 50780, 71092, 88865, 177730, 180269, 355460, 360538, 721076, 901345, 1261883, 1802690, 2523766, 3605380, 5047532, 6309415, 12618830, 25237660]

約数ペア:

[(1, 25237660), (2, 12618830), (4, 6309415), (5, 5047532), (7, 3605380), (10, 2523766), (14, 1802690), (20, 1261883), (28, 901345), (35, 721076), (70, 360538), (71, 355460), (140, 180269), (142, 177730), (284, 88865), (355, 71092), (497, 50780), (710, 35546), (994, 25390), (1420, 17773), (1988, 12695), (2485, 10156), (2539, 9940), (4970, 5078)]