1566390640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{275773}}^1$

素因数の和:275857

約数の個数: 40

約数和(自身を含む): 3693165408

約数和(自身を除く): 2126774768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 275773, 551546, 1103092, 1378865, 2206184, 2757730, 4412368, 5515460, 11030920, 19579883, 22061840, 39159766, 78319532, 97899415, 156639064, 195798830, 313278128, 391597660, 783195320, 1566390640]

約数ペア:

[(1, 1566390640), (2, 783195320), (4, 391597660), (5, 313278128), (8, 195798830), (10, 156639064), (16, 97899415), (20, 78319532), (40, 39159766), (71, 22061840), (80, 19579883), (142, 11030920), (284, 5515460), (355, 4412368), (568, 2757730), (710, 2206184), (1136, 1378865), (1420, 1103092), (2840, 551546), (5680, 275773)]