940398940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{26021}}^1$

素因数の和:26182

約数の個数: 48

約数和(自身を含む): 2142131040

約数和(自身を除く): 1201732100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 2780, 3614, 7228, 9035, 18070, 26021, 36140, 52042, 104084, 130105, 260210, 338273, 520420, 676546, 1353092, 1691365, 3382730, 3616919, 6765460, 7233838, 14467676, 18084595, 36169190, 47019947, 72338380, 94039894, 188079788, 235099735, 470199470, 940398940]

約数ペア:

[(1, 940398940), (2, 470199470), (4, 235099735), (5, 188079788), (10, 94039894), (13, 72338380), (20, 47019947), (26, 36169190), (52, 18084595), (65, 14467676), (130, 7233838), (139, 6765460), (260, 3616919), (278, 3382730), (556, 1691365), (695, 1353092), (1390, 676546), (1807, 520420), (2780, 338273), (3614, 260210), (7228, 130105), (9035, 104084), (18070, 52042), (26021, 36140)]