81205010

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 158233824

約数和(自身を除く): 77028814

約数列:

[1, 2, 5, 10, 37, 41, 53, 74, 82, 101, 106, 185, 202, 205, 265, 370, 410, 505, 530, 1010, 1517, 1961, 2173, 3034, 3737, 3922, 4141, 4346, 5353, 7474, 7585, 8282, 9805, 10706, 10865, 15170, 18685, 19610, 20705, 21730, 26765, 37370, 41410, 53530, 80401, 153217, 160802, 198061, 219473, 306434, 396122, 402005, 438946, 766085, 804010, 990305, 1097365, 1532170, 1980610, 2194730, 8120501, 16241002, 40602505, 81205010]

約数ペア:

[(1, 81205010), (2, 40602505), (5, 16241002), (10, 8120501), (37, 2194730), (41, 1980610), (53, 1532170), (74, 1097365), (82, 990305), (101, 804010), (106, 766085), (185, 438946), (202, 402005), (205, 396122), (265, 306434), (370, 219473), (410, 198061), (505, 160802), (530, 153217), (1010, 80401), (1517, 53530), (1961, 41410), (2173, 37370), (3034, 26765), (3737, 21730), (3922, 20705), (4141, 19610), (4346, 18685), (5353, 15170), (7474, 10865), (7585, 10706), (8282, 9805)]