289716640

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{13217}}^1$

素因数の和:13369

約数の個数: 48

約数和(自身を含む): 689503752

約数和(自身を除く): 399787112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 1096, 1370, 2192, 2740, 4384, 5480, 10960, 13217, 21920, 26434, 52868, 66085, 105736, 132170, 211472, 264340, 422944, 528680, 1057360, 1810729, 2114720, 3621458, 7242916, 9053645, 14485832, 18107290, 28971664, 36214580, 57943328, 72429160, 144858320, 289716640]

約数ペア:

[(1, 289716640), (2, 144858320), (4, 72429160), (5, 57943328), (8, 36214580), (10, 28971664), (16, 18107290), (20, 14485832), (32, 9053645), (40, 7242916), (80, 3621458), (137, 2114720), (160, 1810729), (274, 1057360), (548, 528680), (685, 422944), (1096, 264340), (1370, 211472), (2192, 132170), (2740, 105736), (4384, 66085), (5480, 52868), (10960, 26434), (13217, 21920)]