81515760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{339649}}^1$

素因数の和:339665

約数の個数: 40

約数和(自身を含む): 252699600

約数和(自身を除く): 171183840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 339649, 679298, 1018947, 1358596, 1698245, 2037894, 2717192, 3396490, 4075788, 5094735, 5434384, 6792980, 8151576, 10189470, 13585960, 16303152, 20378940, 27171920, 40757880, 81515760]

約数ペア:

[(1, 81515760), (2, 40757880), (3, 27171920), (4, 20378940), (5, 16303152), (6, 13585960), (8, 10189470), (10, 8151576), (12, 6792980), (15, 5434384), (16, 5094735), (20, 4075788), (24, 3396490), (30, 2717192), (40, 2037894), (48, 1698245), (60, 1358596), (80, 1018947), (120, 679298), (240, 339649)]