20582450

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:328

約数の個数: 72

約数和(自身を含む): 46139904

約数和(自身を除く): 25557454

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 49, 50, 62, 70, 98, 155, 175, 217, 245, 271, 310, 350, 434, 490, 542, 775, 1085, 1225, 1355, 1519, 1550, 1897, 2170, 2450, 2710, 3038, 3794, 5425, 6775, 7595, 8401, 9485, 10850, 13279, 13550, 15190, 16802, 18970, 26558, 37975, 42005, 47425, 58807, 66395, 75950, 84010, 94850, 117614, 132790, 210025, 294035, 331975, 411649, 420050, 588070, 663950, 823298, 1470175, 2058245, 2940350, 4116490, 10291225, 20582450]

約数ペア:

[(1, 20582450), (2, 10291225), (5, 4116490), (7, 2940350), (10, 2058245), (14, 1470175), (25, 823298), (31, 663950), (35, 588070), (49, 420050), (50, 411649), (62, 331975), (70, 294035), (98, 210025), (155, 132790), (175, 117614), (217, 94850), (245, 84010), (271, 75950), (310, 66395), (350, 58807), (434, 47425), (490, 42005), (542, 37975), (775, 26558), (1085, 18970), (1225, 16802), (1355, 15190), (1519, 13550), (1550, 13279), (1897, 10850), (2170, 9485), (2450, 8401), (2710, 7595), (3038, 6775), (3794, 5425)]