215870535

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:1005

約数の個数: 64

約数和(自身を含む): 402716160

約数和(自身を除く): 186845625

約数列:

[1, 3, 5, 9, 15, 27, 41, 43, 45, 123, 129, 135, 205, 215, 369, 387, 615, 645, 907, 1107, 1161, 1763, 1845, 1935, 2721, 4535, 5289, 5535, 5805, 8163, 8815, 13605, 15867, 24489, 26445, 37187, 39001, 40815, 47601, 79335, 111561, 117003, 122445, 185935, 195005, 238005, 334683, 351009, 557805, 585015, 1004049, 1053027, 1599041, 1673415, 1755045, 4797123, 5020245, 5265135, 7995205, 14391369, 23985615, 43174107, 71956845, 215870535]

約数ペア:

[(1, 215870535), (3, 71956845), (5, 43174107), (9, 23985615), (15, 14391369), (27, 7995205), (41, 5265135), (43, 5020245), (45, 4797123), (123, 1755045), (129, 1673415), (135, 1599041), (205, 1053027), (215, 1004049), (369, 585015), (387, 557805), (615, 351009), (645, 334683), (907, 238005), (1107, 195005), (1161, 185935), (1763, 122445), (1845, 117003), (1935, 111561), (2721, 79335), (4535, 47601), (5289, 40815), (5535, 39001), (5805, 37187), (8163, 26445), (8815, 24489), (13605, 15867)]