20722254805

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{145721}}^1$

素因数の和:145989

約数の個数: 32

約数和(自身を含む): 30216913920

約数和(自身を除く): 9494659115

約数列:

[1, 5, 7, 17, 35, 85, 119, 239, 595, 1195, 1673, 4063, 8365, 20315, 28441, 142205, 145721, 728605, 1020047, 2477257, 5100235, 12386285, 17340799, 34827319, 86703995, 174136595, 243791233, 592064423, 1218956165, 2960322115, 4144450961, 20722254805]

約数ペア:

[(1, 20722254805), (5, 4144450961), (7, 2960322115), (17, 1218956165), (35, 592064423), (85, 243791233), (119, 174136595), (239, 86703995), (595, 34827319), (1195, 17340799), (1673, 12386285), (4063, 5100235), (8365, 2477257), (20315, 1020047), (28441, 728605), (142205, 145721)]