72639940

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{43759}}^1$

素因数の和:43851

約数の個数: 24

約数和(自身を含む): 154385280

約数和(自身を除く): 81745340

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 43759, 87518, 175036, 218795, 437590, 875180, 3631997, 7263994, 14527988, 18159985, 36319970, 72639940]

約数ペア:

[(1, 72639940), (2, 36319970), (4, 18159985), (5, 14527988), (10, 7263994), (20, 3631997), (83, 875180), (166, 437590), (332, 218795), (415, 175036), (830, 87518), (1660, 43759)]