27986335

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:128

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 14591585

約数列:

[1, 5, 13, 17, 19, 31, 43, 65, 85, 95, 155, 215, 221, 247, 323, 403, 527, 559, 589, 731, 817, 1105, 1235, 1333, 1615, 2015, 2635, 2795, 2945, 3655, 4085, 4199, 6665, 6851, 7657, 9503, 10013, 10621, 13889, 17329, 20995, 22661, 25327, 34255, 38285, 47515, 50065, 53105, 69445, 86645, 113305, 126635, 130169, 180557, 294593, 329251, 430559, 650845, 902785, 1472965, 1646255, 2152795, 5597267, 27986335]

約数ペア:

[(1, 27986335), (5, 5597267), (13, 2152795), (17, 1646255), (19, 1472965), (31, 902785), (43, 650845), (65, 430559), (85, 329251), (95, 294593), (155, 180557), (215, 130169), (221, 126635), (247, 113305), (323, 86645), (403, 69445), (527, 53105), (559, 50065), (589, 47515), (731, 38285), (817, 34255), (1105, 25327), (1235, 22661), (1333, 20995), (1615, 17329), (2015, 13889), (2635, 10621), (2795, 10013), (2945, 9503), (3655, 7657), (4085, 6851), (4199, 6665)]