83440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1$

素因数の和:169

約数の個数: 40

約数和(自身を含む): 223200

約数和(自身を除く): 139760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 280, 298, 560, 596, 745, 1043, 1192, 1490, 2086, 2384, 2980, 4172, 5215, 5960, 8344, 10430, 11920, 16688, 20860, 41720, 83440]

約数ペア:

[(1, 83440), (2, 41720), (4, 20860), (5, 16688), (7, 11920), (8, 10430), (10, 8344), (14, 5960), (16, 5215), (20, 4172), (28, 2980), (35, 2384), (40, 2086), (56, 1490), (70, 1192), (80, 1043), (112, 745), (140, 596), (149, 560), (280, 298)]