81468640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1129}}^1$

素因数の和:1196

約数の個数: 96

約数和(自身を含む): 215278560

約数和(自身を除く): 133809920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 80, 82, 88, 110, 160, 164, 176, 205, 220, 328, 352, 410, 440, 451, 656, 820, 880, 902, 1129, 1312, 1640, 1760, 1804, 2255, 2258, 3280, 3608, 4510, 4516, 5645, 6560, 7216, 9020, 9032, 11290, 12419, 14432, 18040, 18064, 22580, 24838, 36080, 36128, 45160, 46289, 49676, 62095, 72160, 90320, 92578, 99352, 124190, 180640, 185156, 198704, 231445, 248380, 370312, 397408, 462890, 496760, 509179, 740624, 925780, 993520, 1018358, 1481248, 1851560, 1987040, 2036716, 2545895, 3703120, 4073432, 5091790, 7406240, 8146864, 10183580, 16293728, 20367160, 40734320, 81468640]

約数ペア:

[(1, 81468640), (2, 40734320), (4, 20367160), (5, 16293728), (8, 10183580), (10, 8146864), (11, 7406240), (16, 5091790), (20, 4073432), (22, 3703120), (32, 2545895), (40, 2036716), (41, 1987040), (44, 1851560), (55, 1481248), (80, 1018358), (82, 993520), (88, 925780), (110, 740624), (160, 509179), (164, 496760), (176, 462890), (205, 397408), (220, 370312), (328, 248380), (352, 231445), (410, 198704), (440, 185156), (451, 180640), (656, 124190), (820, 99352), (880, 92578), (902, 90320), (1129, 72160), (1312, 62095), (1640, 49676), (1760, 46289), (1804, 45160), (2255, 36128), (2258, 36080), (3280, 24838), (3608, 22580), (4510, 18064), (4516, 18040), (5645, 14432), (6560, 12419), (7216, 11290), (9020, 9032)]