1390427208

素因数分解:

$2^3\times 3^4\times {\mathrm{2145721}}^1$

素因数の和:2145739

約数の個数: 40

約数和(自身を含む): 3894485430

約数和(自身を除く): 2504058222

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 2145721, 4291442, 6437163, 8582884, 12874326, 17165768, 19311489, 25748652, 38622978, 51497304, 57934467, 77245956, 115868934, 154491912, 173803401, 231737868, 347606802, 463475736, 695213604, 1390427208]

約数ペア:

[(1, 1390427208), (2, 695213604), (3, 463475736), (4, 347606802), (6, 231737868), (8, 173803401), (9, 154491912), (12, 115868934), (18, 77245956), (24, 57934467), (27, 51497304), (36, 38622978), (54, 25748652), (72, 19311489), (81, 17165768), (108, 12874326), (162, 8582884), (216, 6437163), (324, 4291442), (648, 2145721)]