77776880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51169}}^1$

素因数の和:51201

約数の個数: 40

約数和(自身を含む): 190352400

約数和(自身を除く): 112575520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 51169, 102338, 204676, 255845, 409352, 511690, 818704, 972211, 1023380, 1944422, 2046760, 3888844, 4093520, 4861055, 7777688, 9722110, 15555376, 19444220, 38888440, 77776880]

約数ペア:

[(1, 77776880), (2, 38888440), (4, 19444220), (5, 15555376), (8, 9722110), (10, 7777688), (16, 4861055), (19, 4093520), (20, 3888844), (38, 2046760), (40, 1944422), (76, 1023380), (80, 972211), (95, 818704), (152, 511690), (190, 409352), (304, 255845), (380, 204676), (760, 102338), (1520, 51169)]