261305668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{5081}}^1$

素因数の和:5164

約数の個数: 48

約数和(自身を含む): 525926016

約数和(自身を除く): 264620348

約数列:

[1, 2, 4, 13, 23, 26, 43, 46, 52, 86, 92, 172, 299, 559, 598, 989, 1118, 1196, 1978, 2236, 3956, 5081, 10162, 12857, 20324, 25714, 51428, 66053, 116863, 132106, 218483, 233726, 264212, 436966, 467452, 873932, 1519219, 2840279, 3038438, 5025109, 5680558, 6076876, 10050218, 11361116, 20100436, 65326417, 130652834, 261305668]

約数ペア:

[(1, 261305668), (2, 130652834), (4, 65326417), (13, 20100436), (23, 11361116), (26, 10050218), (43, 6076876), (46, 5680558), (52, 5025109), (86, 3038438), (92, 2840279), (172, 1519219), (299, 873932), (559, 467452), (598, 436966), (989, 264212), (1118, 233726), (1196, 218483), (1978, 132106), (2236, 116863), (3956, 66053), (5081, 51428), (10162, 25714), (12857, 20324)]