31427440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:598

約数の個数: 80

約数和(自身を含む): 80994816

約数和(自身を除く): 49567376

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 503, 568, 710, 781, 880, 1006, 1136, 1420, 1562, 2012, 2515, 2840, 3124, 3905, 4024, 5030, 5533, 5680, 6248, 7810, 8048, 10060, 11066, 12496, 15620, 20120, 22132, 27665, 31240, 35713, 40240, 44264, 55330, 62480, 71426, 88528, 110660, 142852, 178565, 221320, 285704, 357130, 392843, 442640, 571408, 714260, 785686, 1428520, 1571372, 1964215, 2857040, 3142744, 3928430, 6285488, 7856860, 15713720, 31427440]

約数ペア:

[(1, 31427440), (2, 15713720), (4, 7856860), (5, 6285488), (8, 3928430), (10, 3142744), (11, 2857040), (16, 1964215), (20, 1571372), (22, 1428520), (40, 785686), (44, 714260), (55, 571408), (71, 442640), (80, 392843), (88, 357130), (110, 285704), (142, 221320), (176, 178565), (220, 142852), (284, 110660), (355, 88528), (440, 71426), (503, 62480), (568, 55330), (710, 44264), (781, 40240), (880, 35713), (1006, 31240), (1136, 27665), (1420, 22132), (1562, 20120), (2012, 15620), (2515, 12496), (2840, 11066), (3124, 10060), (3905, 8048), (4024, 7810), (5030, 6248), (5533, 5680)]