80023720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1579}}^1$

素因数の和:1778

約数の個数: 64

約数和(自身を含む): 207043200

約数和(自身を除く): 127019480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 724, 905, 1267, 1448, 1579, 1810, 2534, 3158, 3620, 5068, 6316, 6335, 7240, 7895, 10136, 11053, 12632, 12670, 15790, 22106, 25340, 31580, 44212, 50680, 55265, 63160, 88424, 110530, 221060, 285799, 442120, 571598, 1143196, 1428995, 2000593, 2286392, 2857990, 4001186, 5715980, 8002372, 10002965, 11431960, 16004744, 20005930, 40011860, 80023720]

約数ペア:

[(1, 80023720), (2, 40011860), (4, 20005930), (5, 16004744), (7, 11431960), (8, 10002965), (10, 8002372), (14, 5715980), (20, 4001186), (28, 2857990), (35, 2286392), (40, 2000593), (56, 1428995), (70, 1143196), (140, 571598), (181, 442120), (280, 285799), (362, 221060), (724, 110530), (905, 88424), (1267, 63160), (1448, 55265), (1579, 50680), (1810, 44212), (2534, 31580), (3158, 25340), (3620, 22106), (5068, 15790), (6316, 12670), (6335, 12632), (7240, 11053), (7895, 10136)]