20865360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86939}}^1$

素因数の和:86955

約数の個数: 40

約数和(自身を含む): 64683360

約数和(自身を除く): 43818000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86939, 173878, 260817, 347756, 434695, 521634, 695512, 869390, 1043268, 1304085, 1391024, 1738780, 2086536, 2608170, 3477560, 4173072, 5216340, 6955120, 10432680, 20865360]

約数ペア:

[(1, 20865360), (2, 10432680), (3, 6955120), (4, 5216340), (5, 4173072), (6, 3477560), (8, 2608170), (10, 2086536), (12, 1738780), (15, 1391024), (16, 1304085), (20, 1043268), (24, 869390), (30, 695512), (40, 521634), (48, 434695), (60, 347756), (80, 260817), (120, 173878), (240, 86939)]