31516040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 74358000

約数和(自身を除く): 42841960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 101, 116, 145, 202, 232, 269, 290, 404, 505, 538, 580, 808, 1010, 1076, 1160, 1345, 2020, 2152, 2690, 2929, 4040, 5380, 5858, 7801, 10760, 11716, 14645, 15602, 23432, 27169, 29290, 31204, 39005, 54338, 58580, 62408, 78010, 108676, 117160, 135845, 156020, 217352, 271690, 312040, 543380, 787901, 1086760, 1575802, 3151604, 3939505, 6303208, 7879010, 15758020, 31516040]

約数ペア:

[(1, 31516040), (2, 15758020), (4, 7879010), (5, 6303208), (8, 3939505), (10, 3151604), (20, 1575802), (29, 1086760), (40, 787901), (58, 543380), (101, 312040), (116, 271690), (145, 217352), (202, 156020), (232, 135845), (269, 117160), (290, 108676), (404, 78010), (505, 62408), (538, 58580), (580, 54338), (808, 39005), (1010, 31204), (1076, 29290), (1160, 27169), (1345, 23432), (2020, 15602), (2152, 14645), (2690, 11716), (2929, 10760), (4040, 7801), (5380, 5858)]