397328950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^2$

素因数の和:274

約数の個数: 72

約数和(自身を含む): 804870360

約数和(自身を除く): 407541410

約数列:

[1, 2, 5, 10, 19, 25, 38, 41, 50, 82, 95, 101, 190, 202, 205, 410, 475, 505, 779, 950, 1010, 1025, 1558, 1919, 2050, 2525, 3838, 3895, 4141, 5050, 7790, 8282, 9595, 10201, 19190, 19475, 20402, 20705, 38950, 41410, 47975, 51005, 78679, 95950, 102010, 103525, 157358, 193819, 207050, 255025, 387638, 393395, 418241, 510050, 786790, 836482, 969095, 1938190, 1966975, 2091205, 3933950, 4182410, 4845475, 7946579, 9690950, 10456025, 15893158, 20912050, 39732895, 79465790, 198664475, 397328950]

約数ペア:

[(1, 397328950), (2, 198664475), (5, 79465790), (10, 39732895), (19, 20912050), (25, 15893158), (38, 10456025), (41, 9690950), (50, 7946579), (82, 4845475), (95, 4182410), (101, 3933950), (190, 2091205), (202, 1966975), (205, 1938190), (410, 969095), (475, 836482), (505, 786790), (779, 510050), (950, 418241), (1010, 393395), (1025, 387638), (1558, 255025), (1919, 207050), (2050, 193819), (2525, 157358), (3838, 103525), (3895, 102010), (4141, 95950), (5050, 78679), (7790, 51005), (8282, 47975), (9595, 41410), (10201, 38950), (19190, 20705), (19475, 20402)]