520012840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{2909}}^1$

素因数の和:3070

約数の個数: 64

約数和(自身を含む): 1209978000

約数和(自身を除く): 689965160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 109, 164, 205, 218, 328, 410, 436, 545, 820, 872, 1090, 1640, 2180, 2909, 4360, 4469, 5818, 8938, 11636, 14545, 17876, 22345, 23272, 29090, 35752, 44690, 58180, 89380, 116360, 119269, 178760, 238538, 317081, 477076, 596345, 634162, 954152, 1192690, 1268324, 1585405, 2385380, 2536648, 3170810, 4770760, 6341620, 12683240, 13000321, 26000642, 52001284, 65001605, 104002568, 130003210, 260006420, 520012840]

約数ペア:

[(1, 520012840), (2, 260006420), (4, 130003210), (5, 104002568), (8, 65001605), (10, 52001284), (20, 26000642), (40, 13000321), (41, 12683240), (82, 6341620), (109, 4770760), (164, 3170810), (205, 2536648), (218, 2385380), (328, 1585405), (410, 1268324), (436, 1192690), (545, 954152), (820, 634162), (872, 596345), (1090, 477076), (1640, 317081), (2180, 238538), (2909, 178760), (4360, 119269), (4469, 116360), (5818, 89380), (8938, 58180), (11636, 44690), (14545, 35752), (17876, 29090), (22345, 23272)]