81343600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15643}}^1$

素因数の和:15674

約数の個数: 60

約数和(自身を含む): 210474376

約数和(自身を除く): 129130776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 15643, 31286, 62572, 78215, 125144, 156430, 203359, 250288, 312860, 391075, 406718, 625720, 782150, 813436, 1016795, 1251440, 1564300, 1626872, 2033590, 3128600, 3253744, 4067180, 5083975, 6257200, 8134360, 10167950, 16268720, 20335900, 40671800, 81343600]

約数ペア:

[(1, 81343600), (2, 40671800), (4, 20335900), (5, 16268720), (8, 10167950), (10, 8134360), (13, 6257200), (16, 5083975), (20, 4067180), (25, 3253744), (26, 3128600), (40, 2033590), (50, 1626872), (52, 1564300), (65, 1251440), (80, 1016795), (100, 813436), (104, 782150), (130, 625720), (200, 406718), (208, 391075), (260, 312860), (325, 250288), (400, 203359), (520, 156430), (650, 125144), (1040, 78215), (1300, 62572), (2600, 31286), (5200, 15643)]