639090

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{263}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 1729728

約数和(自身を除く): 1090638

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 263, 270, 405, 486, 526, 789, 810, 1215, 1315, 1578, 2367, 2430, 2630, 3945, 4734, 7101, 7890, 11835, 14202, 21303, 23670, 35505, 42606, 63909, 71010, 106515, 127818, 213030, 319545, 639090]

約数ペア:

[(1, 639090), (2, 319545), (3, 213030), (5, 127818), (6, 106515), (9, 71010), (10, 63909), (15, 42606), (18, 35505), (27, 23670), (30, 21303), (45, 14202), (54, 11835), (81, 7890), (90, 7101), (135, 4734), (162, 3945), (243, 2630), (263, 2430), (270, 2367), (405, 1578), (486, 1315), (526, 1215), (789, 810)]