156978340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{11261}}^1$

素因数の和:11328

約数の個数: 48

約数和(自身を含む): 357591024

約数和(自身を除く): 200612684

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1394, 2788, 3485, 6970, 11261, 13940, 22522, 45044, 56305, 112610, 191437, 225220, 382874, 461701, 765748, 923402, 957185, 1846804, 1914370, 2308505, 3828740, 4617010, 7848917, 9234020, 15697834, 31395668, 39244585, 78489170, 156978340]

約数ペア:

[(1, 156978340), (2, 78489170), (4, 39244585), (5, 31395668), (10, 15697834), (17, 9234020), (20, 7848917), (34, 4617010), (41, 3828740), (68, 2308505), (82, 1914370), (85, 1846804), (164, 957185), (170, 923402), (205, 765748), (340, 461701), (410, 382874), (697, 225220), (820, 191437), (1394, 112610), (2788, 56305), (3485, 45044), (6970, 22522), (11261, 13940)]