280536490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{7963}}^1$

素因数の和:8254

約数の個数: 32

約数和(自身を含む): 545884416

約数和(自身を除く): 265347926

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 271, 542, 1355, 2710, 3523, 7046, 7963, 15926, 17615, 35230, 39815, 79630, 103519, 207038, 517595, 1035190, 2157973, 4315946, 10789865, 21579730, 28053649, 56107298, 140268245, 280536490]

約数ペア:

[(1, 280536490), (2, 140268245), (5, 56107298), (10, 28053649), (13, 21579730), (26, 10789865), (65, 4315946), (130, 2157973), (271, 1035190), (542, 517595), (1355, 207038), (2710, 103519), (3523, 79630), (7046, 39815), (7963, 35230), (15926, 17615)]