20598971900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3253}}^1\times {\mathrm{4871}}^1$

素因数の和:8151

約数の個数: 72

約数和(自身を含む): 48162896544

約数和(自身を除く): 27563924644

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 3253, 4871, 6506, 9742, 13012, 16265, 19484, 24355, 32530, 42289, 48710, 63323, 65060, 81325, 84578, 97420, 121775, 126646, 162650, 169156, 211445, 243550, 253292, 316615, 325300, 422890, 487100, 633230, 845780, 1057225, 1266460, 1583075, 2114450, 3166150, 4228900, 6332300, 15845363, 31690726, 63381452, 79226815, 158453630, 205989719, 316907260, 396134075, 411979438, 792268150, 823958876, 1029948595, 1584536300, 2059897190, 4119794380, 5149742975, 10299485950, 20598971900]

約数ペア:

[(1, 20598971900), (2, 10299485950), (4, 5149742975), (5, 4119794380), (10, 2059897190), (13, 1584536300), (20, 1029948595), (25, 823958876), (26, 792268150), (50, 411979438), (52, 396134075), (65, 316907260), (100, 205989719), (130, 158453630), (260, 79226815), (325, 63381452), (650, 31690726), (1300, 15845363), (3253, 6332300), (4871, 4228900), (6506, 3166150), (9742, 2114450), (13012, 1583075), (16265, 1266460), (19484, 1057225), (24355, 845780), (32530, 633230), (42289, 487100), (48710, 422890), (63323, 325300), (65060, 316615), (81325, 253292), (84578, 243550), (97420, 211445), (121775, 169156), (126646, 162650)]