20387040

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42473}}^1$

素因数の和:42491

約数の個数: 48

約数和(自身を含む): 64220688

約数和(自身を除く): 43833648

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 42473, 84946, 127419, 169892, 212365, 254838, 339784, 424730, 509676, 637095, 679568, 849460, 1019352, 1274190, 1359136, 1698920, 2038704, 2548380, 3397840, 4077408, 5096760, 6795680, 10193520, 20387040]

約数ペア:

[(1, 20387040), (2, 10193520), (3, 6795680), (4, 5096760), (5, 4077408), (6, 3397840), (8, 2548380), (10, 2038704), (12, 1698920), (15, 1359136), (16, 1274190), (20, 1019352), (24, 849460), (30, 679568), (32, 637095), (40, 509676), (48, 424730), (60, 339784), (80, 254838), (96, 212365), (120, 169892), (160, 127419), (240, 84946), (480, 42473)]