128928540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{165293}}^1$

素因数の和:165318

約数の個数: 48

約数和(自身を含む): 388771488

約数和(自身を除く): 259842948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 165293, 330586, 495879, 661172, 826465, 991758, 1652930, 1983516, 2148809, 2479395, 3305860, 4297618, 4958790, 6446427, 8595236, 9917580, 10744045, 12892854, 21488090, 25785708, 32232135, 42976180, 64464270, 128928540]

約数ペア:

[(1, 128928540), (2, 64464270), (3, 42976180), (4, 32232135), (5, 25785708), (6, 21488090), (10, 12892854), (12, 10744045), (13, 9917580), (15, 8595236), (20, 6446427), (26, 4958790), (30, 4297618), (39, 3305860), (52, 2479395), (60, 2148809), (65, 1983516), (78, 1652930), (130, 991758), (156, 826465), (195, 661172), (260, 495879), (390, 330586), (780, 165293)]