8100820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4451}}^1$

素因数の和:4480

約数の個数: 48

約数和(自身を含む): 20942208

約数和(自身を除く): 12841388

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 4451, 8902, 17804, 22255, 31157, 44510, 57863, 62314, 89020, 115726, 124628, 155785, 231452, 289315, 311570, 405041, 578630, 623140, 810082, 1157260, 1620164, 2025205, 4050410, 8100820]

約数ペア:

[(1, 8100820), (2, 4050410), (4, 2025205), (5, 1620164), (7, 1157260), (10, 810082), (13, 623140), (14, 578630), (20, 405041), (26, 311570), (28, 289315), (35, 231452), (52, 155785), (65, 124628), (70, 115726), (91, 89020), (130, 62314), (140, 57863), (182, 44510), (260, 31157), (364, 22255), (455, 17804), (910, 8902), (1820, 4451)]