20184885

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 20175435

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 139, 315, 417, 461, 695, 973, 1251, 1383, 2085, 2305, 2919, 3227, 4149, 4865, 6255, 6915, 8757, 9681, 14595, 16135, 20745, 29043, 43785, 48405, 64079, 145215, 192237, 320395, 448553, 576711, 961185, 1345659, 2242765, 2883555, 4036977, 6728295, 20184885]

約数ペア:

[(1, 20184885), (3, 6728295), (5, 4036977), (7, 2883555), (9, 2242765), (15, 1345659), (21, 961185), (35, 576711), (45, 448553), (63, 320395), (105, 192237), (139, 145215), (315, 64079), (417, 48405), (461, 43785), (695, 29043), (973, 20745), (1251, 16135), (1383, 14595), (2085, 9681), (2305, 8757), (2919, 6915), (3227, 6255), (4149, 4865)]