20307180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{463}}^1$

素因数の和:535

約数の個数: 96

約数和(自身を含む): 61737984

約数和(自身を除く): 41430804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 43, 51, 60, 68, 85, 86, 102, 129, 170, 172, 204, 215, 255, 258, 340, 430, 463, 510, 516, 645, 731, 860, 926, 1020, 1290, 1389, 1462, 1852, 2193, 2315, 2580, 2778, 2924, 3655, 4386, 4630, 5556, 6945, 7310, 7871, 8772, 9260, 10965, 13890, 14620, 15742, 19909, 21930, 23613, 27780, 31484, 39355, 39818, 43860, 47226, 59727, 78710, 79636, 94452, 99545, 118065, 119454, 157420, 199090, 236130, 238908, 298635, 338453, 398180, 472260, 597270, 676906, 1015359, 1194540, 1353812, 1692265, 2030718, 3384530, 4061436, 5076795, 6769060, 10153590, 20307180]

約数ペア:

[(1, 20307180), (2, 10153590), (3, 6769060), (4, 5076795), (5, 4061436), (6, 3384530), (10, 2030718), (12, 1692265), (15, 1353812), (17, 1194540), (20, 1015359), (30, 676906), (34, 597270), (43, 472260), (51, 398180), (60, 338453), (68, 298635), (85, 238908), (86, 236130), (102, 199090), (129, 157420), (170, 119454), (172, 118065), (204, 99545), (215, 94452), (255, 79636), (258, 78710), (340, 59727), (430, 47226), (463, 43860), (510, 39818), (516, 39355), (645, 31484), (731, 27780), (860, 23613), (926, 21930), (1020, 19909), (1290, 15742), (1389, 14620), (1462, 13890), (1852, 10965), (2193, 9260), (2315, 8772), (2580, 7871), (2778, 7310), (2924, 6945), (3655, 5556), (4386, 4630)]