278673460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1071821}}^1$

素因数の和:1071843

約数の個数: 24

約数和(自身を含む): 630231336

約数和(自身を除く): 351557876

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1071821, 2143642, 4287284, 5359105, 10718210, 13933673, 21436420, 27867346, 55734692, 69668365, 139336730, 278673460]

約数ペア:

[(1, 278673460), (2, 139336730), (4, 69668365), (5, 55734692), (10, 27867346), (13, 21436420), (20, 13933673), (26, 10718210), (52, 5359105), (65, 4287284), (130, 2143642), (260, 1071821)]