129642260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{25621}}^1$

素因数の和:25664

約数の個数: 48

約数和(自身を含む): 309923712

約数和(自身を除く): 180281452

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 25621, 51242, 102484, 128105, 256210, 281831, 512420, 563662, 589283, 1127324, 1178566, 1409155, 2357132, 2818310, 2946415, 5636620, 5892830, 6482113, 11785660, 12964226, 25928452, 32410565, 64821130, 129642260]

約数ペア:

[(1, 129642260), (2, 64821130), (4, 32410565), (5, 25928452), (10, 12964226), (11, 11785660), (20, 6482113), (22, 5892830), (23, 5636620), (44, 2946415), (46, 2818310), (55, 2357132), (92, 1409155), (110, 1178566), (115, 1127324), (220, 589283), (230, 563662), (253, 512420), (460, 281831), (506, 256210), (1012, 128105), (1265, 102484), (2530, 51242), (5060, 25621)]