1180980

素因数分解:

$2^2\times 3^{10}\times 5^1$

素因数の和:39

約数の個数: 66

約数和(自身を含む): 3720066

約数和(自身を除く): 2539086

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, 243, 270, 324, 405, 486, 540, 729, 810, 972, 1215, 1458, 1620, 2187, 2430, 2916, 3645, 4374, 4860, 6561, 7290, 8748, 10935, 13122, 14580, 19683, 21870, 26244, 32805, 39366, 43740, 59049, 65610, 78732, 98415, 118098, 131220, 196830, 236196, 295245, 393660, 590490, 1180980]

約数ペア:

[(1, 1180980), (2, 590490), (3, 393660), (4, 295245), (5, 236196), (6, 196830), (9, 131220), (10, 118098), (12, 98415), (15, 78732), (18, 65610), (20, 59049), (27, 43740), (30, 39366), (36, 32805), (45, 26244), (54, 21870), (60, 19683), (81, 14580), (90, 13122), (108, 10935), (135, 8748), (162, 7290), (180, 6561), (243, 4860), (270, 4374), (324, 3645), (405, 2916), (486, 2430), (540, 2187), (729, 1620), (810, 1458), (972, 1215)]