216221240

素因数分解:

$2^3\times 5^1\times {\mathrm{2129}}^1\times {\mathrm{2539}}^1$

素因数の和:4679

約数の個数: 32

約数和(自身を含む): 486918000

約数和(自身を除く): 270696760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2129, 2539, 4258, 5078, 8516, 10156, 10645, 12695, 17032, 20312, 21290, 25390, 42580, 50780, 85160, 101560, 5405531, 10811062, 21622124, 27027655, 43244248, 54055310, 108110620, 216221240]

約数ペア:

[(1, 216221240), (2, 108110620), (4, 54055310), (5, 43244248), (8, 27027655), (10, 21622124), (20, 10811062), (40, 5405531), (2129, 101560), (2539, 85160), (4258, 50780), (5078, 42580), (8516, 25390), (10156, 21290), (10645, 20312), (12695, 17032)]