81263648

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{81919}}^1$

素因数の和:81960

約数の個数: 24

約数和(自身を含む): 165150720

約数和(自身を除く): 83887072

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 81919, 163838, 327676, 655352, 1310704, 2539489, 2621408, 5078978, 10157956, 20315912, 40631824, 81263648]

約数ペア:

[(1, 81263648), (2, 40631824), (4, 20315912), (8, 10157956), (16, 5078978), (31, 2621408), (32, 2539489), (62, 1310704), (124, 655352), (248, 327676), (496, 163838), (992, 81919)]