56439890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{3169}}^1$

素因数の和:3326

約数の個数: 32

約数和(自身を含む): 110239920

約数和(自身を除く): 53800030

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 137, 274, 685, 1370, 1781, 3169, 3562, 6338, 8905, 15845, 17810, 31690, 41197, 82394, 205985, 411970, 434153, 868306, 2170765, 4341530, 5643989, 11287978, 28219945, 56439890]

約数ペア:

[(1, 56439890), (2, 28219945), (5, 11287978), (10, 5643989), (13, 4341530), (26, 2170765), (65, 868306), (130, 434153), (137, 411970), (274, 205985), (685, 82394), (1370, 41197), (1781, 31690), (3169, 17810), (3562, 15845), (6338, 8905)]