80085880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1249}}^1$

素因数の和:1496

約数の個数: 64

約数和(自身を含む): 207000000

約数和(自身を除く): 126914120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 229, 280, 458, 916, 1145, 1249, 1603, 1832, 2290, 2498, 3206, 4580, 4996, 6245, 6412, 8015, 8743, 9160, 9992, 12490, 12824, 16030, 17486, 24980, 32060, 34972, 43715, 49960, 64120, 69944, 87430, 174860, 286021, 349720, 572042, 1144084, 1430105, 2002147, 2288168, 2860210, 4004294, 5720420, 8008588, 10010735, 11440840, 16017176, 20021470, 40042940, 80085880]

約数ペア:

[(1, 80085880), (2, 40042940), (4, 20021470), (5, 16017176), (7, 11440840), (8, 10010735), (10, 8008588), (14, 5720420), (20, 4004294), (28, 2860210), (35, 2288168), (40, 2002147), (56, 1430105), (70, 1144084), (140, 572042), (229, 349720), (280, 286021), (458, 174860), (916, 87430), (1145, 69944), (1249, 64120), (1603, 49960), (1832, 43715), (2290, 34972), (2498, 32060), (3206, 24980), (4580, 17486), (4996, 16030), (6245, 12824), (6412, 12490), (8015, 9992), (8743, 9160)]