16808680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{347}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 43597440

約数和(自身を除く): 26788760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 173, 280, 346, 347, 692, 694, 865, 1211, 1384, 1388, 1730, 1735, 2422, 2429, 2776, 3460, 3470, 4844, 4858, 6055, 6920, 6940, 9688, 9716, 12110, 12145, 13880, 19432, 24220, 24290, 48440, 48580, 60031, 97160, 120062, 240124, 300155, 420217, 480248, 600310, 840434, 1200620, 1680868, 2101085, 2401240, 3361736, 4202170, 8404340, 16808680]

約数ペア:

[(1, 16808680), (2, 8404340), (4, 4202170), (5, 3361736), (7, 2401240), (8, 2101085), (10, 1680868), (14, 1200620), (20, 840434), (28, 600310), (35, 480248), (40, 420217), (56, 300155), (70, 240124), (140, 120062), (173, 97160), (280, 60031), (346, 48580), (347, 48440), (692, 24290), (694, 24220), (865, 19432), (1211, 13880), (1384, 12145), (1388, 12110), (1730, 9716), (1735, 9688), (2422, 6940), (2429, 6920), (2776, 6055), (3460, 4858), (3470, 4844)]