18012995

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 29998080

約数和(自身を除く): 11985085

約数列:

[1, 5, 7, 11, 13, 35, 55, 59, 61, 65, 77, 91, 143, 295, 305, 385, 413, 427, 455, 649, 671, 715, 767, 793, 1001, 2065, 2135, 3245, 3355, 3599, 3835, 3965, 4543, 4697, 5005, 5369, 5551, 8437, 8723, 17995, 22715, 23485, 25193, 26845, 27755, 39589, 42185, 43615, 46787, 59059, 61061, 125965, 197945, 233935, 277123, 295295, 305305, 327509, 514657, 1385615, 1637545, 2573285, 3602599, 18012995]

約数ペア:

[(1, 18012995), (5, 3602599), (7, 2573285), (11, 1637545), (13, 1385615), (35, 514657), (55, 327509), (59, 305305), (61, 295295), (65, 277123), (77, 233935), (91, 197945), (143, 125965), (295, 61061), (305, 59059), (385, 46787), (413, 43615), (427, 42185), (455, 39589), (649, 27755), (671, 26845), (715, 25193), (767, 23485), (793, 22715), (1001, 17995), (2065, 8723), (2135, 8437), (3245, 5551), (3355, 5369), (3599, 5005), (3835, 4697), (3965, 4543)]