31811220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{25247}}^1$

素因数の和:25269

約数の個数: 72

約数和(自身を含む): 110283264

約数和(自身を除く): 78472044

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 25247, 50494, 75741, 100988, 126235, 151482, 176729, 227223, 252470, 302964, 353458, 378705, 454446, 504940, 530187, 706916, 757410, 883645, 908892, 1060374, 1136115, 1514820, 1590561, 1767290, 2120748, 2272230, 2650935, 3181122, 3534580, 4544460, 5301870, 6362244, 7952805, 10603740, 15905610, 31811220]

約数ペア:

[(1, 31811220), (2, 15905610), (3, 10603740), (4, 7952805), (5, 6362244), (6, 5301870), (7, 4544460), (9, 3534580), (10, 3181122), (12, 2650935), (14, 2272230), (15, 2120748), (18, 1767290), (20, 1590561), (21, 1514820), (28, 1136115), (30, 1060374), (35, 908892), (36, 883645), (42, 757410), (45, 706916), (60, 530187), (63, 504940), (70, 454446), (84, 378705), (90, 353458), (105, 302964), (126, 252470), (140, 227223), (180, 176729), (210, 151482), (252, 126235), (315, 100988), (420, 75741), (630, 50494), (1260, 25247)]