72251920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{69473}}^1$

素因数の和:69499

約数の個数: 40

約数和(自身を含む): 180910296

約数和(自身を除く): 108658376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 69473, 138946, 277892, 347365, 555784, 694730, 903149, 1111568, 1389460, 1806298, 2778920, 3612596, 4515745, 5557840, 7225192, 9031490, 14450384, 18062980, 36125960, 72251920]

約数ペア:

[(1, 72251920), (2, 36125960), (4, 18062980), (5, 14450384), (8, 9031490), (10, 7225192), (13, 5557840), (16, 4515745), (20, 3612596), (26, 2778920), (40, 1806298), (52, 1389460), (65, 1111568), (80, 903149), (104, 694730), (130, 555784), (208, 347365), (260, 277892), (520, 138946), (1040, 69473)]