38942020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7883}}^1$

素因数の和:7924

約数の個数: 48

約数和(自身を含む): 92715840

約数和(自身を除く): 53773820

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 7883, 15766, 31532, 39415, 78830, 102479, 149777, 157660, 204958, 299554, 409916, 512395, 599108, 748885, 1024790, 1497770, 1947101, 2049580, 2995540, 3894202, 7788404, 9735505, 19471010, 38942020]

約数ペア:

[(1, 38942020), (2, 19471010), (4, 9735505), (5, 7788404), (10, 3894202), (13, 2995540), (19, 2049580), (20, 1947101), (26, 1497770), (38, 1024790), (52, 748885), (65, 599108), (76, 512395), (95, 409916), (130, 299554), (190, 204958), (247, 157660), (260, 149777), (380, 102479), (494, 78830), (988, 39415), (1235, 31532), (2470, 15766), (4940, 7883)]