18729090

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{977}}^1$

素因数の和:1064

約数の個数: 64

約数和(自身を含む): 50699520

約数和(自身を除く): 31970430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 71, 90, 135, 142, 213, 270, 355, 426, 639, 710, 977, 1065, 1278, 1917, 1954, 2130, 2931, 3195, 3834, 4885, 5862, 6390, 8793, 9585, 9770, 14655, 17586, 19170, 26379, 29310, 43965, 52758, 69367, 87930, 131895, 138734, 208101, 263790, 346835, 416202, 624303, 693670, 1040505, 1248606, 1872909, 2081010, 3121515, 3745818, 6243030, 9364545, 18729090]

約数ペア:

[(1, 18729090), (2, 9364545), (3, 6243030), (5, 3745818), (6, 3121515), (9, 2081010), (10, 1872909), (15, 1248606), (18, 1040505), (27, 693670), (30, 624303), (45, 416202), (54, 346835), (71, 263790), (90, 208101), (135, 138734), (142, 131895), (213, 87930), (270, 69367), (355, 52758), (426, 43965), (639, 29310), (710, 26379), (977, 19170), (1065, 17586), (1278, 14655), (1917, 9770), (1954, 9585), (2130, 8793), (2931, 6390), (3195, 5862), (3834, 4885)]