20123004460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77396171}}^1$

素因数の和:77396193

約数の個数: 24

約数和(自身を含む): 45508949136

約数和(自身を除く): 25385944676

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77396171, 154792342, 309584684, 386980855, 773961710, 1006150223, 1547923420, 2012300446, 4024600892, 5030751115, 10061502230, 20123004460]

約数ペア:

[(1, 20123004460), (2, 10061502230), (4, 5030751115), (5, 4024600892), (10, 2012300446), (13, 1547923420), (20, 1006150223), (26, 773961710), (52, 386980855), (65, 309584684), (130, 154792342), (260, 77396171)]