491159405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{5281}}^1$

素因数の和:5405

約数の個数: 32

約数和(自身を含む): 684547200

約数和(自身を除く): 193387795

約数列:

[1, 5, 11, 19, 55, 89, 95, 209, 445, 979, 1045, 1691, 4895, 5281, 8455, 18601, 26405, 58091, 93005, 100339, 290455, 470009, 501695, 1103729, 2350045, 5170099, 5518645, 8930171, 25850495, 44650855, 98231881, 491159405]

約数ペア:

[(1, 491159405), (5, 98231881), (11, 44650855), (19, 25850495), (55, 8930171), (89, 5518645), (95, 5170099), (209, 2350045), (445, 1103729), (979, 501695), (1045, 470009), (1691, 290455), (4895, 100339), (5281, 93005), (8455, 58091), (18601, 26405)]