65864450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 72

約数和(自身を含む): 133936740

約数和(自身を除く): 68072290

約数列:

[1, 2, 5, 10, 19, 25, 38, 41, 50, 82, 89, 95, 178, 190, 205, 361, 410, 445, 475, 722, 779, 890, 950, 1025, 1558, 1691, 1805, 2050, 2225, 3382, 3610, 3649, 3895, 4450, 7298, 7790, 8455, 9025, 14801, 16910, 18050, 18245, 19475, 29602, 32129, 36490, 38950, 42275, 64258, 69331, 74005, 84550, 91225, 138662, 148010, 160645, 182450, 321290, 346655, 370025, 693310, 740050, 803225, 1317289, 1606450, 1733275, 2634578, 3466550, 6586445, 13172890, 32932225, 65864450]

約数ペア:

[(1, 65864450), (2, 32932225), (5, 13172890), (10, 6586445), (19, 3466550), (25, 2634578), (38, 1733275), (41, 1606450), (50, 1317289), (82, 803225), (89, 740050), (95, 693310), (178, 370025), (190, 346655), (205, 321290), (361, 182450), (410, 160645), (445, 148010), (475, 138662), (722, 91225), (779, 84550), (890, 74005), (950, 69331), (1025, 64258), (1558, 42275), (1691, 38950), (1805, 36490), (2050, 32129), (2225, 29602), (3382, 19475), (3610, 18245), (3649, 18050), (3895, 16910), (4450, 14801), (7298, 9025), (7790, 8455)]