180005518

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4513}}^1$

素因数の和:4577

約数の個数: 48

約数和(自身を含む): 351983664

約数和(自身を除く): 171978146

約数列:

[1, 2, 7, 11, 14, 22, 37, 49, 74, 77, 98, 154, 259, 407, 518, 539, 814, 1078, 1813, 2849, 3626, 4513, 5698, 9026, 19943, 31591, 39886, 49643, 63182, 99286, 166981, 221137, 333962, 347501, 442274, 695002, 1168867, 1836791, 2337734, 2432507, 3673582, 4865014, 8182069, 12857537, 16364138, 25715074, 90002759, 180005518]

約数ペア:

[(1, 180005518), (2, 90002759), (7, 25715074), (11, 16364138), (14, 12857537), (22, 8182069), (37, 4865014), (49, 3673582), (74, 2432507), (77, 2337734), (98, 1836791), (154, 1168867), (259, 695002), (407, 442274), (518, 347501), (539, 333962), (814, 221137), (1078, 166981), (1813, 99286), (2849, 63182), (3626, 49643), (4513, 39886), (5698, 31591), (9026, 19943)]