202101880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{557}}^1$

素因数の和:808

約数の個数: 64

約数和(自身を含む): 467648640

約数和(自身を除く): 265546760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 193, 235, 376, 386, 470, 557, 772, 940, 965, 1114, 1544, 1880, 1930, 2228, 2785, 3860, 4456, 5570, 7720, 9071, 11140, 18142, 22280, 26179, 36284, 45355, 52358, 72568, 90710, 104716, 107501, 130895, 181420, 209432, 215002, 261790, 362840, 430004, 523580, 537505, 860008, 1047160, 1075010, 2150020, 4300040, 5052547, 10105094, 20210188, 25262735, 40420376, 50525470, 101050940, 202101880]

約数ペア:

[(1, 202101880), (2, 101050940), (4, 50525470), (5, 40420376), (8, 25262735), (10, 20210188), (20, 10105094), (40, 5052547), (47, 4300040), (94, 2150020), (188, 1075010), (193, 1047160), (235, 860008), (376, 537505), (386, 523580), (470, 430004), (557, 362840), (772, 261790), (940, 215002), (965, 209432), (1114, 181420), (1544, 130895), (1880, 107501), (1930, 104716), (2228, 90710), (2785, 72568), (3860, 52358), (4456, 45355), (5570, 36284), (7720, 26179), (9071, 22280), (11140, 18142)]