257413832

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79843}}^1$

素因数の和:79893

約数の個数: 32

約数和(自身を含む): 536551680

約数和(自身を除く): 279137848

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 79843, 159686, 319372, 638744, 1037959, 2075918, 2475133, 4151836, 4950266, 8303672, 9900532, 19801064, 32176729, 64353458, 128706916, 257413832]

約数ペア:

[(1, 257413832), (2, 128706916), (4, 64353458), (8, 32176729), (13, 19801064), (26, 9900532), (31, 8303672), (52, 4950266), (62, 4151836), (104, 2475133), (124, 2075918), (248, 1037959), (403, 638744), (806, 319372), (1612, 159686), (3224, 79843)]