12940760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{409}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 33652800

約数和(自身を除く): 20712040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 409, 452, 565, 791, 818, 904, 1130, 1582, 1636, 2045, 2260, 2863, 3164, 3272, 3955, 4090, 4520, 5726, 6328, 7910, 8180, 11452, 14315, 15820, 16360, 22904, 28630, 31640, 46217, 57260, 92434, 114520, 184868, 231085, 323519, 369736, 462170, 647038, 924340, 1294076, 1617595, 1848680, 2588152, 3235190, 6470380, 12940760]

約数ペア:

[(1, 12940760), (2, 6470380), (4, 3235190), (5, 2588152), (7, 1848680), (8, 1617595), (10, 1294076), (14, 924340), (20, 647038), (28, 462170), (35, 369736), (40, 323519), (56, 231085), (70, 184868), (113, 114520), (140, 92434), (226, 57260), (280, 46217), (409, 31640), (452, 28630), (565, 22904), (791, 16360), (818, 15820), (904, 14315), (1130, 11452), (1582, 8180), (1636, 7910), (2045, 6328), (2260, 5726), (2863, 4520), (3164, 4090), (3272, 3955)]