68520400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{13177}}^1$

素因数の和:13208

約数の個数: 60

約数和(自身を含む): 177296812

約数和(自身を除く): 108776412

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, 13177, 26354, 52708, 65885, 105416, 131770, 171301, 210832, 263540, 329425, 342602, 527080, 658850, 685204, 856505, 1054160, 1317700, 1370408, 1713010, 2635400, 2740816, 3426020, 4282525, 5270800, 6852040, 8565050, 13704080, 17130100, 34260200, 68520400]

約数ペア:

[(1, 68520400), (2, 34260200), (4, 17130100), (5, 13704080), (8, 8565050), (10, 6852040), (13, 5270800), (16, 4282525), (20, 3426020), (25, 2740816), (26, 2635400), (40, 1713010), (50, 1370408), (52, 1317700), (65, 1054160), (80, 856505), (100, 685204), (104, 658850), (130, 527080), (200, 342602), (208, 329425), (260, 263540), (325, 210832), (400, 171301), (520, 131770), (650, 105416), (1040, 65885), (1300, 52708), (2600, 26354), (5200, 13177)]