78196780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{389}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 181162800

約数和(自身を除く): 102966020

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 389, 437, 460, 529, 778, 874, 1058, 1556, 1748, 1945, 2116, 2185, 2645, 3890, 4370, 5290, 7391, 7780, 8740, 8947, 10051, 10580, 14782, 17894, 20102, 29564, 35788, 36955, 40204, 44735, 50255, 73910, 89470, 100510, 147820, 169993, 178940, 201020, 205781, 339986, 411562, 679972, 823124, 849965, 1028905, 1699930, 2057810, 3399860, 3909839, 4115620, 7819678, 15639356, 19549195, 39098390, 78196780]

約数ペア:

[(1, 78196780), (2, 39098390), (4, 19549195), (5, 15639356), (10, 7819678), (19, 4115620), (20, 3909839), (23, 3399860), (38, 2057810), (46, 1699930), (76, 1028905), (92, 849965), (95, 823124), (115, 679972), (190, 411562), (230, 339986), (380, 205781), (389, 201020), (437, 178940), (460, 169993), (529, 147820), (778, 100510), (874, 89470), (1058, 73910), (1556, 50255), (1748, 44735), (1945, 40204), (2116, 36955), (2185, 35788), (2645, 29564), (3890, 20102), (4370, 17894), (5290, 14782), (7391, 10580), (7780, 10051), (8740, 8947)]