28810980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{14551}}^1$

素因数の和:14577

約数の個数: 72

約数和(自身を含む): 95344704

約数和(自身を除く): 66533724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 14551, 29102, 43653, 58204, 72755, 87306, 130959, 145510, 160061, 174612, 218265, 261918, 291020, 320122, 436530, 480183, 523836, 640244, 654795, 800305, 873060, 960366, 1309590, 1440549, 1600610, 1920732, 2400915, 2619180, 2881098, 3201220, 4801830, 5762196, 7202745, 9603660, 14405490, 28810980]

約数ペア:

[(1, 28810980), (2, 14405490), (3, 9603660), (4, 7202745), (5, 5762196), (6, 4801830), (9, 3201220), (10, 2881098), (11, 2619180), (12, 2400915), (15, 1920732), (18, 1600610), (20, 1440549), (22, 1309590), (30, 960366), (33, 873060), (36, 800305), (44, 654795), (45, 640244), (55, 523836), (60, 480183), (66, 436530), (90, 320122), (99, 291020), (110, 261918), (132, 218265), (165, 174612), (180, 160061), (198, 145510), (220, 130959), (330, 87306), (396, 72755), (495, 58204), (660, 43653), (990, 29102), (1980, 14551)]