20082680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 27817480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 83, 92, 115, 166, 184, 230, 263, 332, 415, 460, 526, 664, 830, 920, 1052, 1315, 1660, 1909, 2104, 2630, 3320, 3818, 5260, 6049, 7636, 9545, 10520, 12098, 15272, 19090, 21829, 24196, 30245, 38180, 43658, 48392, 60490, 76360, 87316, 109145, 120980, 174632, 218290, 241960, 436580, 502067, 873160, 1004134, 2008268, 2510335, 4016536, 5020670, 10041340, 20082680]

約数ペア:

[(1, 20082680), (2, 10041340), (4, 5020670), (5, 4016536), (8, 2510335), (10, 2008268), (20, 1004134), (23, 873160), (40, 502067), (46, 436580), (83, 241960), (92, 218290), (115, 174632), (166, 120980), (184, 109145), (230, 87316), (263, 76360), (332, 60490), (415, 48392), (460, 43658), (526, 38180), (664, 30245), (830, 24196), (920, 21829), (1052, 19090), (1315, 15272), (1660, 12098), (1909, 10520), (2104, 9545), (2630, 7636), (3320, 6049), (3818, 5260)]