25221880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1279}}^1$

素因数の和:1336

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 36986120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 116, 136, 145, 170, 232, 290, 340, 493, 580, 680, 986, 1160, 1279, 1972, 2465, 2558, 3944, 4930, 5116, 6395, 9860, 10232, 12790, 19720, 21743, 25580, 37091, 43486, 51160, 74182, 86972, 108715, 148364, 173944, 185455, 217430, 296728, 370910, 434860, 630547, 741820, 869720, 1261094, 1483640, 2522188, 3152735, 5044376, 6305470, 12610940, 25221880]

約数ペア:

[(1, 25221880), (2, 12610940), (4, 6305470), (5, 5044376), (8, 3152735), (10, 2522188), (17, 1483640), (20, 1261094), (29, 869720), (34, 741820), (40, 630547), (58, 434860), (68, 370910), (85, 296728), (116, 217430), (136, 185455), (145, 173944), (170, 148364), (232, 108715), (290, 86972), (340, 74182), (493, 51160), (580, 43486), (680, 37091), (986, 25580), (1160, 21743), (1279, 19720), (1972, 12790), (2465, 10232), (2558, 9860), (3944, 6395), (4930, 5116)]