123645080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:309

約数の個数: 128

約数和(自身を含む): 323326080

約数和(自身を除く): 199681000

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 71, 85, 104, 130, 136, 142, 170, 197, 221, 260, 284, 340, 355, 394, 442, 520, 568, 680, 710, 788, 884, 923, 985, 1105, 1207, 1420, 1576, 1768, 1846, 1970, 2210, 2414, 2561, 2840, 3349, 3692, 3940, 4420, 4615, 4828, 5122, 6035, 6698, 7384, 7880, 8840, 9230, 9656, 10244, 12070, 12805, 13396, 13987, 15691, 16745, 18460, 20488, 24140, 25610, 26792, 27974, 31382, 33490, 36920, 43537, 48280, 51220, 55948, 62764, 66980, 69935, 78455, 87074, 102440, 111896, 125528, 133960, 139870, 156910, 174148, 181831, 217685, 237779, 279740, 313820, 348296, 363662, 435370, 475558, 559480, 627640, 727324, 870740, 909155, 951116, 1188895, 1454648, 1741480, 1818310, 1902232, 2377790, 3091127, 3636620, 4755580, 6182254, 7273240, 9511160, 12364508, 15455635, 24729016, 30911270, 61822540, 123645080]

約数ペア:

[(1, 123645080), (2, 61822540), (4, 30911270), (5, 24729016), (8, 15455635), (10, 12364508), (13, 9511160), (17, 7273240), (20, 6182254), (26, 4755580), (34, 3636620), (40, 3091127), (52, 2377790), (65, 1902232), (68, 1818310), (71, 1741480), (85, 1454648), (104, 1188895), (130, 951116), (136, 909155), (142, 870740), (170, 727324), (197, 627640), (221, 559480), (260, 475558), (284, 435370), (340, 363662), (355, 348296), (394, 313820), (442, 279740), (520, 237779), (568, 217685), (680, 181831), (710, 174148), (788, 156910), (884, 139870), (923, 133960), (985, 125528), (1105, 111896), (1207, 102440), (1420, 87074), (1576, 78455), (1768, 69935), (1846, 66980), (1970, 62764), (2210, 55948), (2414, 51220), (2561, 48280), (2840, 43537), (3349, 36920), (3692, 33490), (3940, 31382), (4420, 27974), (4615, 26792), (4828, 25610), (5122, 24140), (6035, 20488), (6698, 18460), (7384, 16745), (7880, 15691), (8840, 13987), (9230, 13396), (9656, 12805), (10244, 12070)]