81806830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37699}}^1$

素因数の和:37744

約数の個数: 32

約数和(自身を含む): 173721600

約数和(自身を除く): 91914770

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 37699, 75398, 188495, 263893, 376990, 527786, 1168669, 1319465, 2337338, 2638930, 5843345, 8180683, 11686690, 16361366, 40903415, 81806830]

約数ペア:

[(1, 81806830), (2, 40903415), (5, 16361366), (7, 11686690), (10, 8180683), (14, 5843345), (31, 2638930), (35, 2337338), (62, 1319465), (70, 1168669), (155, 527786), (217, 376990), (310, 263893), (434, 188495), (1085, 75398), (2170, 37699)]