20276775

素因数分解:

$3^2\times 5^2\times {\mathrm{227}}^1\times {\mathrm{397}}^1$

素因数の和:640

約数の個数: 36

約数和(自身を含む): 36569832

約数和(自身を除く): 16293057

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 227, 397, 681, 1135, 1191, 1985, 2043, 3405, 3573, 5675, 5955, 9925, 10215, 17025, 17865, 29775, 51075, 89325, 90119, 270357, 450595, 811071, 1351785, 2252975, 4055355, 6758925, 20276775]

約数ペア:

[(1, 20276775), (3, 6758925), (5, 4055355), (9, 2252975), (15, 1351785), (25, 811071), (45, 450595), (75, 270357), (225, 90119), (227, 89325), (397, 51075), (681, 29775), (1135, 17865), (1191, 17025), (1985, 10215), (2043, 9925), (3405, 5955), (3573, 5675)]