27709880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:980

約数の個数: 64

約数和(自身を含む): 69050880

約数和(自身を除く): 41341000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 887, 1420, 1562, 1774, 2840, 3124, 3548, 3905, 4435, 6248, 7096, 7810, 8870, 9757, 15620, 17740, 19514, 31240, 35480, 39028, 48785, 62977, 78056, 97570, 125954, 195140, 251908, 314885, 390280, 503816, 629770, 692747, 1259540, 1385494, 2519080, 2770988, 3463735, 5541976, 6927470, 13854940, 27709880]

約数ペア:

[(1, 27709880), (2, 13854940), (4, 6927470), (5, 5541976), (8, 3463735), (10, 2770988), (11, 2519080), (20, 1385494), (22, 1259540), (40, 692747), (44, 629770), (55, 503816), (71, 390280), (88, 314885), (110, 251908), (142, 195140), (220, 125954), (284, 97570), (355, 78056), (440, 62977), (568, 48785), (710, 39028), (781, 35480), (887, 31240), (1420, 19514), (1562, 17740), (1774, 15620), (2840, 9757), (3124, 8870), (3548, 7810), (3905, 7096), (4435, 6248)]