20730950

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{7823}}^1$

素因数の和:7888

約数の個数: 24

約数和(自身を含む): 39292128

約数和(自身を除く): 18561178

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 265, 530, 1325, 2650, 7823, 15646, 39115, 78230, 195575, 391150, 414619, 829238, 2073095, 4146190, 10365475, 20730950]

約数ペア:

[(1, 20730950), (2, 10365475), (5, 4146190), (10, 2073095), (25, 829238), (50, 414619), (53, 391150), (106, 195575), (265, 78230), (530, 39115), (1325, 15646), (2650, 7823)]