81311565

素因数分解:

$3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1\times {\mathrm{281}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 132544512

約数和(自身を除く): 51232947

約数列:

[1, 3, 5, 15, 101, 191, 281, 303, 505, 573, 843, 955, 1405, 1515, 2865, 4215, 19291, 28381, 53671, 57873, 85143, 96455, 141905, 161013, 268355, 289365, 425715, 805065, 5420771, 16262313, 27103855, 81311565]

約数ペア:

[(1, 81311565), (3, 27103855), (5, 16262313), (15, 5420771), (101, 805065), (191, 425715), (281, 289365), (303, 268355), (505, 161013), (573, 141905), (843, 96455), (955, 85143), (1405, 57873), (1515, 53671), (2865, 28381), (4215, 19291)]