189448760

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 434790720

約数和(自身を除く): 245341960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 157, 194, 311, 314, 388, 485, 622, 628, 776, 785, 970, 1244, 1256, 1555, 1570, 1940, 2488, 3110, 3140, 3880, 6220, 6280, 12440, 15229, 30167, 30458, 48827, 60334, 60916, 76145, 97654, 120668, 121832, 150835, 152290, 195308, 241336, 244135, 301670, 304580, 390616, 488270, 603340, 609160, 976540, 1206680, 1953080, 4736219, 9472438, 18944876, 23681095, 37889752, 47362190, 94724380, 189448760]

約数ペア:

[(1, 189448760), (2, 94724380), (4, 47362190), (5, 37889752), (8, 23681095), (10, 18944876), (20, 9472438), (40, 4736219), (97, 1953080), (157, 1206680), (194, 976540), (311, 609160), (314, 603340), (388, 488270), (485, 390616), (622, 304580), (628, 301670), (776, 244135), (785, 241336), (970, 195308), (1244, 152290), (1256, 150835), (1555, 121832), (1570, 120668), (1940, 97654), (2488, 76145), (3110, 60916), (3140, 60334), (3880, 48827), (6220, 30458), (6280, 30167), (12440, 15229)]