78788320

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37879}}^1$

素因数の和:37907

約数の個数: 48

約数和(自身を含む): 200460960

約数和(自身を除く): 121672640

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, 37879, 75758, 151516, 189395, 303032, 378790, 492427, 606064, 757580, 984854, 1212128, 1515160, 1969708, 2462135, 3030320, 3939416, 4924270, 6060640, 7878832, 9848540, 15757664, 19697080, 39394160, 78788320]

約数ペア:

[(1, 78788320), (2, 39394160), (4, 19697080), (5, 15757664), (8, 9848540), (10, 7878832), (13, 6060640), (16, 4924270), (20, 3939416), (26, 3030320), (32, 2462135), (40, 1969708), (52, 1515160), (65, 1212128), (80, 984854), (104, 757580), (130, 606064), (160, 492427), (208, 378790), (260, 303032), (416, 189395), (520, 151516), (1040, 75758), (2080, 37879)]