78819660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1399}}^1$

素因数の和:1727

約数の個数: 72

約数和(自身を含む): 240021600

約数和(自身を除く): 161201940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 313, 626, 939, 1252, 1399, 1565, 1878, 2798, 2817, 3130, 3756, 4197, 4695, 5596, 5634, 6260, 6995, 8394, 9390, 11268, 12591, 13990, 14085, 16788, 18780, 20985, 25182, 27980, 28170, 41970, 50364, 56340, 62955, 83940, 125910, 251820, 437887, 875774, 1313661, 1751548, 2189435, 2627322, 3940983, 4378870, 5254644, 6568305, 7881966, 8757740, 13136610, 15763932, 19704915, 26273220, 39409830, 78819660]

約数ペア:

[(1, 78819660), (2, 39409830), (3, 26273220), (4, 19704915), (5, 15763932), (6, 13136610), (9, 8757740), (10, 7881966), (12, 6568305), (15, 5254644), (18, 4378870), (20, 3940983), (30, 2627322), (36, 2189435), (45, 1751548), (60, 1313661), (90, 875774), (180, 437887), (313, 251820), (626, 125910), (939, 83940), (1252, 62955), (1399, 56340), (1565, 50364), (1878, 41970), (2798, 28170), (2817, 27980), (3130, 25182), (3756, 20985), (4197, 18780), (4695, 16788), (5596, 14085), (5634, 13990), (6260, 12591), (6995, 11268), (8394, 9390)]