89881980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{20521}}^1$

素因数の和:20606

約数の個数: 48

約数和(自身を含む): 255129504

約数和(自身を除く): 165247524

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 20521, 41042, 61563, 82084, 102605, 123126, 205210, 246252, 307815, 410420, 615630, 1231260, 1498033, 2996066, 4494099, 5992132, 7490165, 8988198, 14980330, 17976396, 22470495, 29960660, 44940990, 89881980]

約数ペア:

[(1, 89881980), (2, 44940990), (3, 29960660), (4, 22470495), (5, 17976396), (6, 14980330), (10, 8988198), (12, 7490165), (15, 5992132), (20, 4494099), (30, 2996066), (60, 1498033), (73, 1231260), (146, 615630), (219, 410420), (292, 307815), (365, 246252), (438, 205210), (730, 123126), (876, 102605), (1095, 82084), (1460, 61563), (2190, 41042), (4380, 20521)]