1389580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 3187296

約数和(自身を除く): 1797716

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 67, 68, 85, 122, 134, 170, 244, 268, 305, 335, 340, 610, 670, 1037, 1139, 1220, 1340, 2074, 2278, 4087, 4148, 4556, 5185, 5695, 8174, 10370, 11390, 16348, 20435, 20740, 22780, 40870, 69479, 81740, 138958, 277916, 347395, 694790, 1389580]

約数ペア:

[(1, 1389580), (2, 694790), (4, 347395), (5, 277916), (10, 138958), (17, 81740), (20, 69479), (34, 40870), (61, 22780), (67, 20740), (68, 20435), (85, 16348), (122, 11390), (134, 10370), (170, 8174), (244, 5695), (268, 5185), (305, 4556), (335, 4148), (340, 4087), (610, 2278), (670, 2074), (1037, 1340), (1139, 1220)]