12907420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37963}}^1$

素因数の和:37989

約数の個数: 24

約数和(自身を含む): 28700784

約数和(自身を除く): 15793364

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 37963, 75926, 151852, 189815, 379630, 645371, 759260, 1290742, 2581484, 3226855, 6453710, 12907420]

約数ペア:

[(1, 12907420), (2, 6453710), (4, 3226855), (5, 2581484), (10, 1290742), (17, 759260), (20, 645371), (34, 379630), (68, 189815), (85, 151852), (170, 75926), (340, 37963)]