172530405

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9907}}^1$

素因数の和:9967

約数の個数: 40

約数和(自身を含む): 316501152

約数和(自身を除く): 143970747

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 387, 405, 645, 1161, 1935, 3483, 5805, 9907, 17415, 29721, 49535, 89163, 148605, 267489, 426001, 445815, 802467, 1278003, 1337445, 2130005, 3834009, 4012335, 6390015, 11502027, 19170045, 34506081, 57510135, 172530405]

約数ペア:

[(1, 172530405), (3, 57510135), (5, 34506081), (9, 19170045), (15, 11502027), (27, 6390015), (43, 4012335), (45, 3834009), (81, 2130005), (129, 1337445), (135, 1278003), (215, 802467), (387, 445815), (405, 426001), (645, 267489), (1161, 148605), (1935, 89163), (3483, 49535), (5805, 29721), (9907, 17415)]