291208760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{66791}}^1$

素因数の和:66911

約数の個数: 32

約数和(自身を含む): 661240800

約数和(自身を除く): 370032040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 66791, 133582, 267164, 333955, 534328, 667910, 1335820, 2671640, 7280219, 14560438, 29120876, 36401095, 58241752, 72802190, 145604380, 291208760]

約数ペア:

[(1, 291208760), (2, 145604380), (4, 72802190), (5, 58241752), (8, 36401095), (10, 29120876), (20, 14560438), (40, 7280219), (109, 2671640), (218, 1335820), (436, 667910), (545, 534328), (872, 333955), (1090, 267164), (2180, 133582), (4360, 66791)]