76721180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{557}}^1$

素因数の和:734

約数の個数: 48

約数和(自身を含む): 165364416

約数和(自身を除く): 88643236

約数列:

[1, 2, 4, 5, 10, 20, 71, 97, 142, 194, 284, 355, 388, 485, 557, 710, 970, 1114, 1420, 1940, 2228, 2785, 5570, 6887, 11140, 13774, 27548, 34435, 39547, 54029, 68870, 79094, 108058, 137740, 158188, 197735, 216116, 270145, 395470, 540290, 790940, 1080580, 3836059, 7672118, 15344236, 19180295, 38360590, 76721180]

約数ペア:

[(1, 76721180), (2, 38360590), (4, 19180295), (5, 15344236), (10, 7672118), (20, 3836059), (71, 1080580), (97, 790940), (142, 540290), (194, 395470), (284, 270145), (355, 216116), (388, 197735), (485, 158188), (557, 137740), (710, 108058), (970, 79094), (1114, 68870), (1420, 54029), (1940, 39547), (2228, 34435), (2785, 27548), (5570, 13774), (6887, 11140)]