40438190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1579}}^1$

素因数の和:1796

約数の個数: 32

約数和(自身を含む): 78835680

約数和(自身を除く): 38397490

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 985, 1579, 1970, 2561, 3158, 5122, 7895, 12805, 15790, 20527, 25610, 41054, 102635, 205270, 311063, 622126, 1555315, 3110630, 4043819, 8087638, 20219095, 40438190]

約数ペア:

[(1, 40438190), (2, 20219095), (5, 8087638), (10, 4043819), (13, 3110630), (26, 1555315), (65, 622126), (130, 311063), (197, 205270), (394, 102635), (985, 41054), (1579, 25610), (1970, 20527), (2561, 15790), (3158, 12805), (5122, 7895)]