99915560

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{40949}}^1$

素因数の和:41021

約数の個数: 32

約数和(自身を含む): 228501000

約数和(自身を除く): 128585440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 40949, 81898, 163796, 204745, 327592, 409490, 818980, 1637960, 2497889, 4995778, 9991556, 12489445, 19983112, 24978890, 49957780, 99915560]

約数ペア:

[(1, 99915560), (2, 49957780), (4, 24978890), (5, 19983112), (8, 12489445), (10, 9991556), (20, 4995778), (40, 2497889), (61, 1637960), (122, 818980), (244, 409490), (305, 327592), (488, 204745), (610, 163796), (1220, 81898), (2440, 40949)]