25721630

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:465

約数の個数: 64

約数和(自身を含む): 55019520

約数和(自身を除く): 29297890

約数列:

[1, 2, 5, 10, 11, 19, 22, 31, 38, 55, 62, 95, 110, 155, 190, 209, 310, 341, 397, 418, 589, 682, 794, 1045, 1178, 1705, 1985, 2090, 2945, 3410, 3970, 4367, 5890, 6479, 7543, 8734, 12307, 12958, 15086, 21835, 24614, 32395, 37715, 43670, 61535, 64790, 75430, 82973, 123070, 135377, 165946, 233833, 270754, 414865, 467666, 676885, 829730, 1169165, 1353770, 2338330, 2572163, 5144326, 12860815, 25721630]

約数ペア:

[(1, 25721630), (2, 12860815), (5, 5144326), (10, 2572163), (11, 2338330), (19, 1353770), (22, 1169165), (31, 829730), (38, 676885), (55, 467666), (62, 414865), (95, 270754), (110, 233833), (155, 165946), (190, 135377), (209, 123070), (310, 82973), (341, 75430), (397, 64790), (418, 61535), (589, 43670), (682, 37715), (794, 32395), (1045, 24614), (1178, 21835), (1705, 15086), (1985, 12958), (2090, 12307), (2945, 8734), (3410, 7543), (3970, 6479), (4367, 5890)]