16856980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 41827968

約数和(自身を除く): 24970988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 167, 196, 206, 245, 334, 412, 490, 515, 668, 721, 835, 980, 1030, 1169, 1442, 1670, 2060, 2338, 2884, 3340, 3605, 4676, 5047, 5845, 7210, 8183, 10094, 11690, 14420, 16366, 17201, 20188, 23380, 25235, 32732, 34402, 40915, 50470, 68804, 81830, 86005, 100940, 120407, 163660, 172010, 240814, 344020, 481628, 602035, 842849, 1204070, 1685698, 2408140, 3371396, 4214245, 8428490, 16856980]

約数ペア:

[(1, 16856980), (2, 8428490), (4, 4214245), (5, 3371396), (7, 2408140), (10, 1685698), (14, 1204070), (20, 842849), (28, 602035), (35, 481628), (49, 344020), (70, 240814), (98, 172010), (103, 163660), (140, 120407), (167, 100940), (196, 86005), (206, 81830), (245, 68804), (334, 50470), (412, 40915), (490, 34402), (515, 32732), (668, 25235), (721, 23380), (835, 20188), (980, 17201), (1030, 16366), (1169, 14420), (1442, 11690), (1670, 10094), (2060, 8183), (2338, 7210), (2884, 5845), (3340, 5047), (3605, 4676)]