397367900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5101}}^1$

素因数の和:5175

約数の個数: 72

約数和(自身を含む): 929992560

約数和(自身を除く): 532624660

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 164, 190, 205, 380, 410, 475, 779, 820, 950, 1025, 1558, 1900, 2050, 3116, 3895, 4100, 5101, 7790, 10202, 15580, 19475, 20404, 25505, 38950, 51010, 77900, 96919, 102020, 127525, 193838, 209141, 255050, 387676, 418282, 484595, 510100, 836564, 969190, 1045705, 1938380, 2091410, 2422975, 3973679, 4182820, 4845950, 5228525, 7947358, 9691900, 10457050, 15894716, 19868395, 20914100, 39736790, 79473580, 99341975, 198683950, 397367900]

約数ペア:

[(1, 397367900), (2, 198683950), (4, 99341975), (5, 79473580), (10, 39736790), (19, 20914100), (20, 19868395), (25, 15894716), (38, 10457050), (41, 9691900), (50, 7947358), (76, 5228525), (82, 4845950), (95, 4182820), (100, 3973679), (164, 2422975), (190, 2091410), (205, 1938380), (380, 1045705), (410, 969190), (475, 836564), (779, 510100), (820, 484595), (950, 418282), (1025, 387676), (1558, 255050), (1900, 209141), (2050, 193838), (3116, 127525), (3895, 102020), (4100, 96919), (5101, 77900), (7790, 51010), (10202, 38950), (15580, 25505), (19475, 20404)]