81110820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{617}}^1$

素因数の和:949

約数の個数: 96

約数和(自身を含む): 260805888

約数和(自身を除く): 179695068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 313, 420, 617, 626, 939, 1234, 1252, 1565, 1851, 1878, 2191, 2468, 3085, 3130, 3702, 3756, 4319, 4382, 4695, 6170, 6260, 6573, 7404, 8638, 8764, 9255, 9390, 10955, 12340, 12957, 13146, 17276, 18510, 18780, 21595, 21910, 25914, 26292, 32865, 37020, 43190, 43820, 51828, 64785, 65730, 86380, 129570, 131460, 193121, 259140, 386242, 579363, 772484, 965605, 1158726, 1351847, 1931210, 2317452, 2703694, 2896815, 3862420, 4055541, 5407388, 5793630, 6759235, 8111082, 11587260, 13518470, 16222164, 20277705, 27036940, 40555410, 81110820]

約数ペア:

[(1, 81110820), (2, 40555410), (3, 27036940), (4, 20277705), (5, 16222164), (6, 13518470), (7, 11587260), (10, 8111082), (12, 6759235), (14, 5793630), (15, 5407388), (20, 4055541), (21, 3862420), (28, 2896815), (30, 2703694), (35, 2317452), (42, 1931210), (60, 1351847), (70, 1158726), (84, 965605), (105, 772484), (140, 579363), (210, 386242), (313, 259140), (420, 193121), (617, 131460), (626, 129570), (939, 86380), (1234, 65730), (1252, 64785), (1565, 51828), (1851, 43820), (1878, 43190), (2191, 37020), (2468, 32865), (3085, 26292), (3130, 25914), (3702, 21910), (3756, 21595), (4319, 18780), (4382, 18510), (4695, 17276), (6170, 13146), (6260, 12957), (6573, 12340), (7404, 10955), (8638, 9390), (8764, 9255)]