90211480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{821}}^1$

素因数の和:940

約数の個数: 64

約数和(自身を含む): 211286880

約数和(自身を除く): 121075400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 67, 82, 134, 164, 205, 268, 328, 335, 410, 536, 670, 820, 821, 1340, 1640, 1642, 2680, 2747, 3284, 4105, 5494, 6568, 8210, 10988, 13735, 16420, 21976, 27470, 32840, 33661, 54940, 55007, 67322, 109880, 110014, 134644, 168305, 220028, 269288, 275035, 336610, 440056, 550070, 673220, 1100140, 1346440, 2200280, 2255287, 4510574, 9021148, 11276435, 18042296, 22552870, 45105740, 90211480]

約数ペア:

[(1, 90211480), (2, 45105740), (4, 22552870), (5, 18042296), (8, 11276435), (10, 9021148), (20, 4510574), (40, 2255287), (41, 2200280), (67, 1346440), (82, 1100140), (134, 673220), (164, 550070), (205, 440056), (268, 336610), (328, 275035), (335, 269288), (410, 220028), (536, 168305), (670, 134644), (820, 110014), (821, 109880), (1340, 67322), (1640, 55007), (1642, 54940), (2680, 33661), (2747, 32840), (3284, 27470), (4105, 21976), (5494, 16420), (6568, 13735), (8210, 10988)]