201661395

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{479}}^1$

素因数の和:644

約数の個数: 64

約数和(自身を含む): 371589120

約数和(自身を除く): 169927725

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 127, 195, 221, 255, 381, 479, 635, 663, 1105, 1437, 1651, 1905, 2159, 2395, 3315, 4953, 6227, 6477, 7185, 8143, 8255, 10795, 18681, 24429, 24765, 28067, 31135, 32385, 40715, 60833, 84201, 93405, 105859, 122145, 140335, 182499, 304165, 317577, 421005, 529295, 790829, 912495, 1034161, 1587885, 2372487, 3102483, 3954145, 5170805, 11862435, 13444093, 15512415, 40332279, 67220465, 201661395]

約数ペア:

[(1, 201661395), (3, 67220465), (5, 40332279), (13, 15512415), (15, 13444093), (17, 11862435), (39, 5170805), (51, 3954145), (65, 3102483), (85, 2372487), (127, 1587885), (195, 1034161), (221, 912495), (255, 790829), (381, 529295), (479, 421005), (635, 317577), (663, 304165), (1105, 182499), (1437, 140335), (1651, 122145), (1905, 105859), (2159, 93405), (2395, 84201), (3315, 60833), (4953, 40715), (6227, 32385), (6477, 31135), (7185, 28067), (8143, 24765), (8255, 24429), (10795, 18681)]