821354320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{603937}}^1$

素因数の和:603967

約数の個数: 40

約数和(自身を含む): 2021984424

約数和(自身を除く): 1200630104

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 603937, 1207874, 2415748, 3019685, 4831496, 6039370, 9662992, 10266929, 12078740, 20533858, 24157480, 41067716, 48314960, 51334645, 82135432, 102669290, 164270864, 205338580, 410677160, 821354320]

約数ペア:

[(1, 821354320), (2, 410677160), (4, 205338580), (5, 164270864), (8, 102669290), (10, 82135432), (16, 51334645), (17, 48314960), (20, 41067716), (34, 24157480), (40, 20533858), (68, 12078740), (80, 10266929), (85, 9662992), (136, 6039370), (170, 4831496), (272, 3019685), (340, 2415748), (680, 1207874), (1360, 603937)]