2019396575

素因数分解:

$5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1297}}^1$

素因数の和:1393

約数の個数: 72

約数和(自身を含む): 3082552704

約数和(自身を除く): 1063156129

約数列:

[1, 5, 7, 25, 31, 35, 41, 49, 155, 175, 205, 217, 245, 287, 775, 1025, 1085, 1225, 1271, 1297, 1435, 1519, 2009, 5425, 6355, 6485, 7175, 7595, 8897, 9079, 10045, 31775, 32425, 37975, 40207, 44485, 45395, 50225, 53177, 62279, 63553, 201035, 222425, 226975, 265885, 281449, 311395, 317765, 372239, 1005175, 1329425, 1407245, 1556975, 1588825, 1648487, 1861195, 1970143, 2605673, 7036225, 8242435, 9305975, 9850715, 11539409, 13028365, 41212175, 49253575, 57697045, 65141825, 80775863, 288485225, 403879315, 2019396575]

約数ペア:

[(1, 2019396575), (5, 403879315), (7, 288485225), (25, 80775863), (31, 65141825), (35, 57697045), (41, 49253575), (49, 41212175), (155, 13028365), (175, 11539409), (205, 9850715), (217, 9305975), (245, 8242435), (287, 7036225), (775, 2605673), (1025, 1970143), (1085, 1861195), (1225, 1648487), (1271, 1588825), (1297, 1556975), (1435, 1407245), (1519, 1329425), (2009, 1005175), (5425, 372239), (6355, 317765), (6485, 311395), (7175, 281449), (7595, 265885), (8897, 226975), (9079, 222425), (10045, 201035), (31775, 63553), (32425, 62279), (37975, 53177), (40207, 50225), (44485, 45395)]