1780053408020

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{2441}}^1\times {\mathrm{55837}}^1$

素因数の和:58940

約数の個数: 48

約数和(自身を含む): 3745437485328

約数和(自身を除く): 1965384077308

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 2441, 2612, 3265, 4882, 6530, 9764, 12205, 13060, 24410, 48820, 55837, 111674, 223348, 279185, 558370, 1116740, 1593973, 3187946, 6375892, 7969865, 15939730, 31879460, 36461561, 72923122, 136298117, 145846244, 182307805, 272596234, 364615610, 545192468, 681490585, 729231220, 1362981170, 2725962340, 89002670401, 178005340802, 356010681604, 445013352005, 890026704010, 1780053408020]

約数ペア:

[(1, 1780053408020), (2, 890026704010), (4, 445013352005), (5, 356010681604), (10, 178005340802), (20, 89002670401), (653, 2725962340), (1306, 1362981170), (2441, 729231220), (2612, 681490585), (3265, 545192468), (4882, 364615610), (6530, 272596234), (9764, 182307805), (12205, 145846244), (13060, 136298117), (24410, 72923122), (48820, 36461561), (55837, 31879460), (111674, 15939730), (223348, 7969865), (279185, 6375892), (558370, 3187946), (1116740, 1593973)]