98989580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1979}}^1$

素因数の和:2090

約数の個数: 48

約数和(自身を含む): 216548640

約数和(自身を除く): 117559060

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 410, 610, 820, 1220, 1979, 2501, 3958, 5002, 7916, 9895, 10004, 12505, 19790, 25010, 39580, 50020, 81139, 120719, 162278, 241438, 324556, 405695, 482876, 603595, 811390, 1207190, 1622780, 2414380, 4949479, 9898958, 19797916, 24747395, 49494790, 98989580]

約数ペア:

[(1, 98989580), (2, 49494790), (4, 24747395), (5, 19797916), (10, 9898958), (20, 4949479), (41, 2414380), (61, 1622780), (82, 1207190), (122, 811390), (164, 603595), (205, 482876), (244, 405695), (305, 324556), (410, 241438), (610, 162278), (820, 120719), (1220, 81139), (1979, 50020), (2501, 39580), (3958, 25010), (5002, 19790), (7916, 12505), (9895, 10004)]