78919490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19583}}^1$

素因数の和:19634

約数の個数: 32

約数和(自身を含む): 157925376

約数和(自身を除く): 79005886

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 19583, 39166, 97915, 195830, 254579, 509158, 607073, 1214146, 1272895, 2545790, 3035365, 6070730, 7891949, 15783898, 39459745, 78919490]

約数ペア:

[(1, 78919490), (2, 39459745), (5, 15783898), (10, 7891949), (13, 6070730), (26, 3035365), (31, 2545790), (62, 1272895), (65, 1214146), (130, 607073), (155, 509158), (310, 254579), (403, 195830), (806, 97915), (2015, 39166), (4030, 19583)]