40894880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19661}}^1$

素因数の和:19689

約数の個数: 48

約数和(自身を含む): 104051304

約数和(自身を除く): 63156424

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 19661, 39322, 78644, 98305, 157288, 196610, 255593, 314576, 393220, 511186, 629152, 786440, 1022372, 1277965, 1572880, 2044744, 2555930, 3145760, 4089488, 5111860, 8178976, 10223720, 20447440, 40894880]

約数ペア:

[(1, 40894880), (2, 20447440), (4, 10223720), (5, 8178976), (8, 5111860), (10, 4089488), (13, 3145760), (16, 2555930), (20, 2044744), (26, 1572880), (32, 1277965), (40, 1022372), (52, 786440), (65, 629152), (80, 511186), (104, 393220), (130, 314576), (160, 255593), (208, 196610), (260, 157288), (416, 98305), (520, 78644), (1040, 39322), (2080, 19661)]