979540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 2261952

約数和(自身を除く): 1282412

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 67, 68, 85, 86, 134, 170, 172, 215, 268, 335, 340, 430, 670, 731, 860, 1139, 1340, 1462, 2278, 2881, 2924, 3655, 4556, 5695, 5762, 7310, 11390, 11524, 14405, 14620, 22780, 28810, 48977, 57620, 97954, 195908, 244885, 489770, 979540]

約数ペア:

[(1, 979540), (2, 489770), (4, 244885), (5, 195908), (10, 97954), (17, 57620), (20, 48977), (34, 28810), (43, 22780), (67, 14620), (68, 14405), (85, 11524), (86, 11390), (134, 7310), (170, 5762), (172, 5695), (215, 4556), (268, 3655), (335, 2924), (340, 2881), (430, 2278), (670, 1462), (731, 1340), (860, 1139)]