1318395280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{531611}}^1$

素因数の和:531655

約数の個数: 40

約数和(自身を含む): 3164154624

約数和(自身を除く): 1845759344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 531611, 1063222, 2126444, 2658055, 4252888, 5316110, 8505776, 10632220, 16479941, 21264440, 32959882, 42528880, 65919764, 82399705, 131839528, 164799410, 263679056, 329598820, 659197640, 1318395280]

約数ペア:

[(1, 1318395280), (2, 659197640), (4, 329598820), (5, 263679056), (8, 164799410), (10, 131839528), (16, 82399705), (20, 65919764), (31, 42528880), (40, 32959882), (62, 21264440), (80, 16479941), (124, 10632220), (155, 8505776), (248, 5316110), (310, 4252888), (496, 2658055), (620, 2126444), (1240, 1063222), (2480, 531611)]