159794020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{2617}}^1$

素因数の和:2740

約数の個数: 48

約数和(自身を含む): 348340608

約数和(自身を除く): 188546588

約数列:

[1, 2, 4, 5, 10, 20, 43, 71, 86, 142, 172, 215, 284, 355, 430, 710, 860, 1420, 2617, 3053, 5234, 6106, 10468, 12212, 13085, 15265, 26170, 30530, 52340, 61060, 112531, 185807, 225062, 371614, 450124, 562655, 743228, 929035, 1125310, 1858070, 2250620, 3716140, 7989701, 15979402, 31958804, 39948505, 79897010, 159794020]

約数ペア:

[(1, 159794020), (2, 79897010), (4, 39948505), (5, 31958804), (10, 15979402), (20, 7989701), (43, 3716140), (71, 2250620), (86, 1858070), (142, 1125310), (172, 929035), (215, 743228), (284, 562655), (355, 450124), (430, 371614), (710, 225062), (860, 185807), (1420, 112531), (2617, 61060), (3053, 52340), (5234, 30530), (6106, 26170), (10468, 15265), (12212, 13085)]