16880930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 35925120

約数和(自身を除く): 19044190

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 41, 55, 82, 95, 110, 190, 197, 205, 209, 394, 410, 418, 451, 779, 902, 985, 1045, 1558, 1970, 2090, 2167, 2255, 3743, 3895, 4334, 4510, 7486, 7790, 8077, 8569, 10835, 16154, 17138, 18715, 21670, 37430, 40385, 41173, 42845, 80770, 82346, 85690, 88847, 153463, 177694, 205865, 306926, 411730, 444235, 767315, 888470, 1534630, 1688093, 3376186, 8440465, 16880930]

約数ペア:

[(1, 16880930), (2, 8440465), (5, 3376186), (10, 1688093), (11, 1534630), (19, 888470), (22, 767315), (38, 444235), (41, 411730), (55, 306926), (82, 205865), (95, 177694), (110, 153463), (190, 88847), (197, 85690), (205, 82346), (209, 80770), (394, 42845), (410, 41173), (418, 40385), (451, 37430), (779, 21670), (902, 18715), (985, 17138), (1045, 16154), (1558, 10835), (1970, 8569), (2090, 8077), (2167, 7790), (2255, 7486), (3743, 4510), (3895, 4334)]