2688702920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{86287}}^1$

素因数の和:86358

約数の個数: 64

約数和(自身を含む): 6523372800

約数和(自身を除く): 3834669880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 820, 1558, 1640, 3116, 3895, 6232, 7790, 15580, 31160, 86287, 172574, 345148, 431435, 690296, 862870, 1639453, 1725740, 3278906, 3451480, 3537767, 6557812, 7075534, 8197265, 13115624, 14151068, 16394530, 17688835, 28302136, 32789060, 35377670, 65578120, 67217573, 70755340, 134435146, 141510680, 268870292, 336087865, 537740584, 672175730, 1344351460, 2688702920]

約数ペア:

[(1, 2688702920), (2, 1344351460), (4, 672175730), (5, 537740584), (8, 336087865), (10, 268870292), (19, 141510680), (20, 134435146), (38, 70755340), (40, 67217573), (41, 65578120), (76, 35377670), (82, 32789060), (95, 28302136), (152, 17688835), (164, 16394530), (190, 14151068), (205, 13115624), (328, 8197265), (380, 7075534), (410, 6557812), (760, 3537767), (779, 3451480), (820, 3278906), (1558, 1725740), (1640, 1639453), (3116, 862870), (3895, 690296), (6232, 431435), (7790, 345148), (15580, 172574), (31160, 86287)]