20045870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{569}}^1$

素因数の和:860

約数の個数: 32

約数和(自身を含む): 39070080

約数和(自身を除く): 19024210

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 271, 542, 569, 1138, 1355, 2710, 2845, 3523, 5690, 7046, 7397, 14794, 17615, 35230, 36985, 73970, 154199, 308398, 770995, 1541990, 2004587, 4009174, 10022935, 20045870]

約数ペア:

[(1, 20045870), (2, 10022935), (5, 4009174), (10, 2004587), (13, 1541990), (26, 770995), (65, 308398), (130, 154199), (271, 73970), (542, 36985), (569, 35230), (1138, 17615), (1355, 14794), (2710, 7397), (2845, 7046), (3523, 5690)]