40871860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 88179840

約数和(自身を除く): 47307980

約数列:

[1, 2, 4, 5, 10, 20, 71, 107, 142, 214, 269, 284, 355, 428, 535, 538, 710, 1070, 1076, 1345, 1420, 2140, 2690, 5380, 7597, 15194, 19099, 28783, 30388, 37985, 38198, 57566, 75970, 76396, 95495, 115132, 143915, 151940, 190990, 287830, 381980, 575660, 2043593, 4087186, 8174372, 10217965, 20435930, 40871860]

約数ペア:

[(1, 40871860), (2, 20435930), (4, 10217965), (5, 8174372), (10, 4087186), (20, 2043593), (71, 575660), (107, 381980), (142, 287830), (214, 190990), (269, 151940), (284, 143915), (355, 115132), (428, 95495), (535, 76396), (538, 75970), (710, 57566), (1070, 38198), (1076, 37985), (1345, 30388), (1420, 28783), (2140, 19099), (2690, 15194), (5380, 7597)]