128520880

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{373}}^1$

素因数の和:518

約数の個数: 80

約数和(自身を含む): 308864160

約数和(自身を除く): 180343280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 73, 80, 118, 146, 236, 292, 295, 365, 373, 472, 584, 590, 730, 746, 944, 1168, 1180, 1460, 1492, 1865, 2360, 2920, 2984, 3730, 4307, 4720, 5840, 5968, 7460, 8614, 14920, 17228, 21535, 22007, 27229, 29840, 34456, 43070, 44014, 54458, 68912, 86140, 88028, 108916, 110035, 136145, 172280, 176056, 217832, 220070, 272290, 344560, 352112, 435664, 440140, 544580, 880280, 1089160, 1606511, 1760560, 2178320, 3213022, 6426044, 8032555, 12852088, 16065110, 25704176, 32130220, 64260440, 128520880]

約数ペア:

[(1, 128520880), (2, 64260440), (4, 32130220), (5, 25704176), (8, 16065110), (10, 12852088), (16, 8032555), (20, 6426044), (40, 3213022), (59, 2178320), (73, 1760560), (80, 1606511), (118, 1089160), (146, 880280), (236, 544580), (292, 440140), (295, 435664), (365, 352112), (373, 344560), (472, 272290), (584, 220070), (590, 217832), (730, 176056), (746, 172280), (944, 136145), (1168, 110035), (1180, 108916), (1460, 88028), (1492, 86140), (1865, 68912), (2360, 54458), (2920, 44014), (2984, 43070), (3730, 34456), (4307, 29840), (4720, 27229), (5840, 22007), (5968, 21535), (7460, 17228), (8614, 14920)]