128612380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{2927}}^1$

素因数の和:2975

約数の個数: 48

約数和(自身を含む): 292682880

約数和(自身を除く): 164070500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 2197, 2927, 3380, 4394, 5854, 8788, 10985, 11708, 14635, 21970, 29270, 38051, 43940, 58540, 76102, 152204, 190255, 380510, 494663, 761020, 989326, 1978652, 2473315, 4946630, 6430619, 9893260, 12861238, 25722476, 32153095, 64306190, 128612380]

約数ペア:

[(1, 128612380), (2, 64306190), (4, 32153095), (5, 25722476), (10, 12861238), (13, 9893260), (20, 6430619), (26, 4946630), (52, 2473315), (65, 1978652), (130, 989326), (169, 761020), (260, 494663), (338, 380510), (676, 190255), (845, 152204), (1690, 76102), (2197, 58540), (2927, 43940), (3380, 38051), (4394, 29270), (5854, 21970), (8788, 14635), (10985, 11708)]