39887380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11801}}^1$

素因数の和:11836

約数の個数: 36

約数和(自身を含む): 90710172

約数和(自身を除く): 50822792

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 11801, 23602, 47204, 59005, 118010, 153413, 236020, 306826, 613652, 767065, 1534130, 1994369, 3068260, 3988738, 7977476, 9971845, 19943690, 39887380]

約数ペア:

[(1, 39887380), (2, 19943690), (4, 9971845), (5, 7977476), (10, 3988738), (13, 3068260), (20, 1994369), (26, 1534130), (52, 767065), (65, 613652), (130, 306826), (169, 236020), (260, 153413), (338, 118010), (676, 59005), (845, 47204), (1690, 23602), (3380, 11801)]