15819320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 39247200

約数和(自身を除く): 23427880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 157, 220, 229, 314, 440, 458, 628, 785, 916, 1145, 1256, 1570, 1727, 1832, 2290, 2519, 3140, 3454, 4580, 5038, 6280, 6908, 8635, 9160, 10076, 12595, 13816, 17270, 20152, 25190, 34540, 35953, 50380, 69080, 71906, 100760, 143812, 179765, 287624, 359530, 395483, 719060, 790966, 1438120, 1581932, 1977415, 3163864, 3954830, 7909660, 15819320]

約数ペア:

[(1, 15819320), (2, 7909660), (4, 3954830), (5, 3163864), (8, 1977415), (10, 1581932), (11, 1438120), (20, 790966), (22, 719060), (40, 395483), (44, 359530), (55, 287624), (88, 179765), (110, 143812), (157, 100760), (220, 71906), (229, 69080), (314, 50380), (440, 35953), (458, 34540), (628, 25190), (785, 20152), (916, 17270), (1145, 13816), (1256, 12595), (1570, 10076), (1727, 9160), (1832, 8635), (2290, 6908), (2519, 6280), (3140, 5038), (3454, 4580)]