84367720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:506

約数の個数: 64

約数和(自身を含む): 196035840

約数和(自身を除く): 111668120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 181, 215, 271, 344, 362, 430, 542, 724, 860, 905, 1084, 1355, 1448, 1720, 1810, 2168, 2710, 3620, 5420, 7240, 7783, 10840, 11653, 15566, 23306, 31132, 38915, 46612, 49051, 58265, 62264, 77830, 93224, 98102, 116530, 155660, 196204, 233060, 245255, 311320, 392408, 466120, 490510, 981020, 1962040, 2109193, 4218386, 8436772, 10545965, 16873544, 21091930, 42183860, 84367720]

約数ペア:

[(1, 84367720), (2, 42183860), (4, 21091930), (5, 16873544), (8, 10545965), (10, 8436772), (20, 4218386), (40, 2109193), (43, 1962040), (86, 981020), (172, 490510), (181, 466120), (215, 392408), (271, 311320), (344, 245255), (362, 233060), (430, 196204), (542, 155660), (724, 116530), (860, 98102), (905, 93224), (1084, 77830), (1355, 62264), (1448, 58265), (1720, 49051), (1810, 46612), (2168, 38915), (2710, 31132), (3620, 23306), (5420, 15566), (7240, 11653), (7783, 10840)]