18319730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:611

約数の個数: 64

約数和(自身を含む): 40497408

約数和(自身を除く): 22177678

約数列:

[1, 2, 5, 10, 11, 13, 22, 23, 26, 46, 55, 65, 110, 115, 130, 143, 230, 253, 286, 299, 506, 557, 598, 715, 1114, 1265, 1430, 1495, 2530, 2785, 2990, 3289, 5570, 6127, 6578, 7241, 12254, 12811, 14482, 16445, 25622, 30635, 32890, 36205, 61270, 64055, 72410, 79651, 128110, 140921, 159302, 166543, 281842, 333086, 398255, 704605, 796510, 832715, 1409210, 1665430, 1831973, 3663946, 9159865, 18319730]

約数ペア:

[(1, 18319730), (2, 9159865), (5, 3663946), (10, 1831973), (11, 1665430), (13, 1409210), (22, 832715), (23, 796510), (26, 704605), (46, 398255), (55, 333086), (65, 281842), (110, 166543), (115, 159302), (130, 140921), (143, 128110), (230, 79651), (253, 72410), (286, 64055), (299, 61270), (506, 36205), (557, 32890), (598, 30635), (715, 25622), (1114, 16445), (1265, 14482), (1430, 12811), (1495, 12254), (2530, 7241), (2785, 6578), (2990, 6127), (3289, 5570)]