261301976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{81049}}^1$

素因数の和:81099

約数の個数: 32

約数和(自身を含む): 544656000

約数和(自身を除く): 283354024

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 81049, 162098, 324196, 648392, 1053637, 2107274, 2512519, 4214548, 5025038, 8429096, 10050076, 20100152, 32662747, 65325494, 130650988, 261301976]

約数ペア:

[(1, 261301976), (2, 130650988), (4, 65325494), (8, 32662747), (13, 20100152), (26, 10050076), (31, 8429096), (52, 5025038), (62, 4214548), (104, 2512519), (124, 2107274), (248, 1053637), (403, 648392), (806, 324196), (1612, 162098), (3224, 81049)]