8273980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 20645856

約数和(自身を除く): 12371876

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 263, 286, 484, 526, 572, 605, 715, 1052, 1210, 1315, 1430, 1573, 2420, 2630, 2860, 2893, 3146, 3419, 5260, 5786, 6292, 6838, 7865, 11572, 13676, 14465, 15730, 17095, 28930, 31460, 31823, 34190, 37609, 57860, 63646, 68380, 75218, 127292, 150436, 159115, 188045, 318230, 376090, 413699, 636460, 752180, 827398, 1654796, 2068495, 4136990, 8273980]

約数ペア:

[(1, 8273980), (2, 4136990), (4, 2068495), (5, 1654796), (10, 827398), (11, 752180), (13, 636460), (20, 413699), (22, 376090), (26, 318230), (44, 188045), (52, 159115), (55, 150436), (65, 127292), (110, 75218), (121, 68380), (130, 63646), (143, 57860), (220, 37609), (242, 34190), (260, 31823), (263, 31460), (286, 28930), (484, 17095), (526, 15730), (572, 14465), (605, 13676), (715, 11572), (1052, 7865), (1210, 6838), (1315, 6292), (1430, 5786), (1573, 5260), (2420, 3419), (2630, 3146), (2860, 2893)]