649620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{401}}^1$

素因数の和:422

約数の個数: 60

約数和(自身を含む): 2042964

約数和(自身を除く): 1393344

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 401, 405, 540, 802, 810, 1203, 1604, 1620, 2005, 2406, 3609, 4010, 4812, 6015, 7218, 8020, 10827, 12030, 14436, 18045, 21654, 24060, 32481, 36090, 43308, 54135, 64962, 72180, 108270, 129924, 162405, 216540, 324810, 649620]

約数ペア:

[(1, 649620), (2, 324810), (3, 216540), (4, 162405), (5, 129924), (6, 108270), (9, 72180), (10, 64962), (12, 54135), (15, 43308), (18, 36090), (20, 32481), (27, 24060), (30, 21654), (36, 18045), (45, 14436), (54, 12030), (60, 10827), (81, 8020), (90, 7218), (108, 6015), (135, 4812), (162, 4010), (180, 3609), (270, 2406), (324, 2005), (401, 1620), (405, 1604), (540, 1203), (802, 810)]