31720635

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 57657600

約数和(自身を除く): 25936965

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 109, 145, 223, 261, 327, 435, 545, 669, 981, 1115, 1305, 1635, 2007, 3161, 3345, 4905, 6467, 9483, 10035, 15805, 19401, 24307, 28449, 32335, 47415, 58203, 72921, 97005, 121535, 142245, 218763, 291015, 364605, 704903, 1093815, 2114709, 3524515, 6344127, 10573545, 31720635]

約数ペア:

[(1, 31720635), (3, 10573545), (5, 6344127), (9, 3524515), (15, 2114709), (29, 1093815), (45, 704903), (87, 364605), (109, 291015), (145, 218763), (223, 142245), (261, 121535), (327, 97005), (435, 72921), (545, 58203), (669, 47415), (981, 32335), (1115, 28449), (1305, 24307), (1635, 19401), (2007, 15805), (3161, 10035), (3345, 9483), (4905, 6467)]