8889320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 22161600

約数和(自身を除く): 13272280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 227, 356, 440, 445, 454, 712, 890, 908, 979, 1135, 1780, 1816, 1958, 2270, 2497, 3560, 3916, 4540, 4895, 4994, 7832, 9080, 9790, 9988, 12485, 19580, 19976, 20203, 24970, 39160, 40406, 49940, 80812, 99880, 101015, 161624, 202030, 222233, 404060, 444466, 808120, 888932, 1111165, 1777864, 2222330, 4444660, 8889320]

約数ペア:

[(1, 8889320), (2, 4444660), (4, 2222330), (5, 1777864), (8, 1111165), (10, 888932), (11, 808120), (20, 444466), (22, 404060), (40, 222233), (44, 202030), (55, 161624), (88, 101015), (89, 99880), (110, 80812), (178, 49940), (220, 40406), (227, 39160), (356, 24970), (440, 20203), (445, 19976), (454, 19580), (712, 12485), (890, 9988), (908, 9790), (979, 9080), (1135, 7832), (1780, 4994), (1816, 4895), (1958, 4540), (2270, 3916), (2497, 3560)]