208509488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{307}}^1$

素因数の和:570

約数の個数: 80

約数和(自身を含む): 470219904

約数和(自身を除く): 261710416

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 227, 272, 307, 374, 454, 614, 748, 908, 1228, 1496, 1816, 2456, 2497, 2992, 3377, 3632, 3859, 4912, 4994, 5219, 6754, 7718, 9988, 10438, 13508, 15436, 19976, 20876, 27016, 30872, 39952, 41752, 42449, 54032, 57409, 61744, 69689, 83504, 84898, 114818, 139378, 169796, 229636, 278756, 339592, 459272, 557512, 679184, 766579, 918544, 1115024, 1184713, 1533158, 2369426, 3066316, 4738852, 6132632, 9477704, 12265264, 13031843, 18955408, 26063686, 52127372, 104254744, 208509488]

約数ペア:

[(1, 208509488), (2, 104254744), (4, 52127372), (8, 26063686), (11, 18955408), (16, 13031843), (17, 12265264), (22, 9477704), (34, 6132632), (44, 4738852), (68, 3066316), (88, 2369426), (136, 1533158), (176, 1184713), (187, 1115024), (227, 918544), (272, 766579), (307, 679184), (374, 557512), (454, 459272), (614, 339592), (748, 278756), (908, 229636), (1228, 169796), (1496, 139378), (1816, 114818), (2456, 84898), (2497, 83504), (2992, 69689), (3377, 61744), (3632, 57409), (3859, 54032), (4912, 42449), (4994, 41752), (5219, 39952), (6754, 30872), (7718, 27016), (9988, 20876), (10438, 19976), (13508, 15436)]