20210050

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:212

約数の個数: 72

約数和(自身を含む): 44719236

約数和(自身を除く): 24509186

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 73, 98, 113, 146, 175, 226, 245, 350, 365, 490, 511, 565, 730, 791, 1022, 1130, 1225, 1582, 1825, 2450, 2555, 2825, 3577, 3650, 3955, 5110, 5537, 5650, 7154, 7910, 8249, 11074, 12775, 16498, 17885, 19775, 25550, 27685, 35770, 39550, 41245, 55370, 57743, 82490, 89425, 115486, 138425, 178850, 206225, 276850, 288715, 404201, 412450, 577430, 808402, 1443575, 2021005, 2887150, 4042010, 10105025, 20210050]

約数ペア:

[(1, 20210050), (2, 10105025), (5, 4042010), (7, 2887150), (10, 2021005), (14, 1443575), (25, 808402), (35, 577430), (49, 412450), (50, 404201), (70, 288715), (73, 276850), (98, 206225), (113, 178850), (146, 138425), (175, 115486), (226, 89425), (245, 82490), (350, 57743), (365, 55370), (490, 41245), (511, 39550), (565, 35770), (730, 27685), (791, 25550), (1022, 19775), (1130, 17885), (1225, 16498), (1582, 12775), (1825, 11074), (2450, 8249), (2555, 7910), (2825, 7154), (3577, 5650), (3650, 5537), (3955, 5110)]