87845780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{9739}}^1$

素因数の和:9800

約数の個数: 48

約数和(自身を含む): 206176320

約数和(自身を除く): 118330540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 9739, 19478, 38956, 48695, 97390, 107129, 194780, 214258, 399299, 428516, 535645, 798598, 1071290, 1597196, 1996495, 2142580, 3992990, 4392289, 7985980, 8784578, 17569156, 21961445, 43922890, 87845780]

約数ペア:

[(1, 87845780), (2, 43922890), (4, 21961445), (5, 17569156), (10, 8784578), (11, 7985980), (20, 4392289), (22, 3992990), (41, 2142580), (44, 1996495), (55, 1597196), (82, 1071290), (110, 798598), (164, 535645), (205, 428516), (220, 399299), (410, 214258), (451, 194780), (820, 107129), (902, 97390), (1804, 48695), (2255, 38956), (4510, 19478), (9020, 9739)]