19723730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{877}}^1$

素因数の和:1070

約数の個数: 32

約数和(自身を含む): 38498544

約数和(自身を除く): 18774814

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 173, 346, 865, 877, 1730, 1754, 2249, 4385, 4498, 8770, 11245, 11401, 22490, 22802, 57005, 114010, 151721, 303442, 758605, 1517210, 1972373, 3944746, 9861865, 19723730]

約数ペア:

[(1, 19723730), (2, 9861865), (5, 3944746), (10, 1972373), (13, 1517210), (26, 758605), (65, 303442), (130, 151721), (173, 114010), (346, 57005), (865, 22802), (877, 22490), (1730, 11401), (1754, 11245), (2249, 8770), (4385, 4498)]