16516520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 39890880

約数和(自身を除く): 23374360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 107, 136, 170, 214, 227, 340, 428, 454, 535, 680, 856, 908, 1070, 1135, 1816, 1819, 2140, 2270, 3638, 3859, 4280, 4540, 7276, 7718, 9080, 9095, 14552, 15436, 18190, 19295, 24289, 30872, 36380, 38590, 48578, 72760, 77180, 97156, 121445, 154360, 194312, 242890, 412913, 485780, 825826, 971560, 1651652, 2064565, 3303304, 4129130, 8258260, 16516520]

約数ペア:

[(1, 16516520), (2, 8258260), (4, 4129130), (5, 3303304), (8, 2064565), (10, 1651652), (17, 971560), (20, 825826), (34, 485780), (40, 412913), (68, 242890), (85, 194312), (107, 154360), (136, 121445), (170, 97156), (214, 77180), (227, 72760), (340, 48578), (428, 38590), (454, 36380), (535, 30872), (680, 24289), (856, 19295), (908, 18190), (1070, 15436), (1135, 14552), (1816, 9095), (1819, 9080), (2140, 7718), (2270, 7276), (3638, 4540), (3859, 4280)]