215023005

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{12347}}^1$

素因数の和:12407

約数の個数: 40

約数和(自身を含む): 394444512

約数和(自身を除く): 179421507

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 387, 405, 645, 1161, 1935, 3483, 5805, 12347, 17415, 37041, 61735, 111123, 185205, 333369, 530921, 555615, 1000107, 1592763, 1666845, 2654605, 4778289, 5000535, 7963815, 14334867, 23891445, 43004601, 71674335, 215023005]

約数ペア:

[(1, 215023005), (3, 71674335), (5, 43004601), (9, 23891445), (15, 14334867), (27, 7963815), (43, 5000535), (45, 4778289), (81, 2654605), (129, 1666845), (135, 1592763), (215, 1000107), (387, 555615), (405, 530921), (645, 333369), (1161, 185205), (1935, 111123), (3483, 61735), (5805, 37041), (12347, 17415)]