42913880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 100154880

約数和(自身を除く): 57241000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 137, 164, 191, 205, 274, 328, 382, 410, 548, 685, 764, 820, 955, 1096, 1370, 1528, 1640, 1910, 2740, 3820, 5480, 5617, 7640, 7831, 11234, 15662, 22468, 26167, 28085, 31324, 39155, 44936, 52334, 56170, 62648, 78310, 104668, 112340, 130835, 156620, 209336, 224680, 261670, 313240, 523340, 1046680, 1072847, 2145694, 4291388, 5364235, 8582776, 10728470, 21456940, 42913880]

約数ペア:

[(1, 42913880), (2, 21456940), (4, 10728470), (5, 8582776), (8, 5364235), (10, 4291388), (20, 2145694), (40, 1072847), (41, 1046680), (82, 523340), (137, 313240), (164, 261670), (191, 224680), (205, 209336), (274, 156620), (328, 130835), (382, 112340), (410, 104668), (548, 78310), (685, 62648), (764, 56170), (820, 52334), (955, 44936), (1096, 39155), (1370, 31324), (1528, 28085), (1640, 26167), (1910, 22468), (2740, 15662), (3820, 11234), (5480, 7831), (5617, 7640)]