65400400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{12577}}^1$

素因数の和:12608

約数の個数: 60

約数和(自身を含む): 169224412

約数和(自身を除く): 103824012

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, 12577, 25154, 50308, 62885, 100616, 125770, 163501, 201232, 251540, 314425, 327002, 503080, 628850, 654004, 817505, 1006160, 1257700, 1308008, 1635010, 2515400, 2616016, 3270020, 4087525, 5030800, 6540040, 8175050, 13080080, 16350100, 32700200, 65400400]

約数ペア:

[(1, 65400400), (2, 32700200), (4, 16350100), (5, 13080080), (8, 8175050), (10, 6540040), (13, 5030800), (16, 4087525), (20, 3270020), (25, 2616016), (26, 2515400), (40, 1635010), (50, 1308008), (52, 1257700), (65, 1006160), (80, 817505), (100, 654004), (104, 628850), (130, 503080), (200, 327002), (208, 314425), (260, 251540), (325, 201232), (400, 163501), (520, 125770), (650, 100616), (1040, 62885), (1300, 50308), (2600, 25154), (5200, 12577)]