15880580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{79}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 37161600

約数和(自身を除く): 21281020

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 79, 92, 95, 115, 158, 190, 230, 316, 380, 395, 437, 460, 529, 790, 874, 1058, 1501, 1580, 1748, 1817, 2116, 2185, 2645, 3002, 3634, 4370, 5290, 6004, 7268, 7505, 8740, 9085, 10051, 10580, 15010, 18170, 20102, 30020, 34523, 36340, 40204, 41791, 50255, 69046, 83582, 100510, 138092, 167164, 172615, 201020, 208955, 345230, 417910, 690460, 794029, 835820, 1588058, 3176116, 3970145, 7940290, 15880580]

約数ペア:

[(1, 15880580), (2, 7940290), (4, 3970145), (5, 3176116), (10, 1588058), (19, 835820), (20, 794029), (23, 690460), (38, 417910), (46, 345230), (76, 208955), (79, 201020), (92, 172615), (95, 167164), (115, 138092), (158, 100510), (190, 83582), (230, 69046), (316, 50255), (380, 41791), (395, 40204), (437, 36340), (460, 34523), (529, 30020), (790, 20102), (874, 18170), (1058, 15010), (1501, 10580), (1580, 10051), (1748, 9085), (1817, 8740), (2116, 7505), (2185, 7268), (2645, 6004), (3002, 5290), (3634, 4370)]