20402501620

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1\times {\mathrm{32261}}^1$

素因数の和:32680

約数の個数: 48

約数和(自身を含む): 43403488128

約数和(自身を除く): 23000986508

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 307, 412, 515, 614, 1030, 1228, 1535, 2060, 3070, 6140, 31621, 32261, 63242, 64522, 126484, 129044, 158105, 161305, 316210, 322610, 632420, 645220, 3322883, 6645766, 9904127, 13291532, 16614415, 19808254, 33228830, 39616508, 49520635, 66457660, 99041270, 198082540, 1020125081, 2040250162, 4080500324, 5100625405, 10201250810, 20402501620]

約数ペア:

[(1, 20402501620), (2, 10201250810), (4, 5100625405), (5, 4080500324), (10, 2040250162), (20, 1020125081), (103, 198082540), (206, 99041270), (307, 66457660), (412, 49520635), (515, 39616508), (614, 33228830), (1030, 19808254), (1228, 16614415), (1535, 13291532), (2060, 9904127), (3070, 6645766), (6140, 3322883), (31621, 645220), (32261, 632420), (63242, 322610), (64522, 316210), (126484, 161305), (129044, 158105)]