71390440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{162251}}^1$

素因数の和:162273

約数の個数: 32

約数和(自身を含む): 175232160

約数和(自身を除く): 103841720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 162251, 324502, 649004, 811255, 1298008, 1622510, 1784761, 3245020, 3569522, 6490040, 7139044, 8923805, 14278088, 17847610, 35695220, 71390440]

約数ペア:

[(1, 71390440), (2, 35695220), (4, 17847610), (5, 14278088), (8, 8923805), (10, 7139044), (11, 6490040), (20, 3569522), (22, 3245020), (40, 1784761), (44, 1622510), (55, 1298008), (88, 811255), (110, 649004), (220, 324502), (440, 162251)]