20218080

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:668

約数の個数: 96

約数和(自身を含む): 64671264

約数和(自身を除く): 44453184

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 73, 80, 96, 120, 146, 160, 219, 240, 292, 365, 438, 480, 577, 584, 730, 876, 1095, 1154, 1168, 1460, 1731, 1752, 2190, 2308, 2336, 2885, 2920, 3462, 3504, 4380, 4616, 5770, 5840, 6924, 7008, 8655, 8760, 9232, 11540, 11680, 13848, 17310, 17520, 18464, 23080, 27696, 34620, 35040, 42121, 46160, 55392, 69240, 84242, 92320, 126363, 138480, 168484, 210605, 252726, 276960, 336968, 421210, 505452, 631815, 673936, 842420, 1010904, 1263630, 1347872, 1684840, 2021808, 2527260, 3369680, 4043616, 5054520, 6739360, 10109040, 20218080]

約数ペア:

[(1, 20218080), (2, 10109040), (3, 6739360), (4, 5054520), (5, 4043616), (6, 3369680), (8, 2527260), (10, 2021808), (12, 1684840), (15, 1347872), (16, 1263630), (20, 1010904), (24, 842420), (30, 673936), (32, 631815), (40, 505452), (48, 421210), (60, 336968), (73, 276960), (80, 252726), (96, 210605), (120, 168484), (146, 138480), (160, 126363), (219, 92320), (240, 84242), (292, 69240), (365, 55392), (438, 46160), (480, 42121), (577, 35040), (584, 34620), (730, 27696), (876, 23080), (1095, 18464), (1154, 17520), (1168, 17310), (1460, 13848), (1731, 11680), (1752, 11540), (2190, 9232), (2308, 8760), (2336, 8655), (2885, 7008), (2920, 6924), (3462, 5840), (3504, 5770), (4380, 4616)]