18836020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1621}}^1$

素因数の和:1720

約数の個数: 48

約数和(自身を含む): 45779328

約数和(自身を除く): 26943308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 166, 332, 415, 581, 830, 1162, 1621, 1660, 2324, 2905, 3242, 5810, 6484, 8105, 11347, 11620, 16210, 22694, 32420, 45388, 56735, 113470, 134543, 226940, 269086, 538172, 672715, 941801, 1345430, 1883602, 2690860, 3767204, 4709005, 9418010, 18836020]

約数ペア:

[(1, 18836020), (2, 9418010), (4, 4709005), (5, 3767204), (7, 2690860), (10, 1883602), (14, 1345430), (20, 941801), (28, 672715), (35, 538172), (70, 269086), (83, 226940), (140, 134543), (166, 113470), (332, 56735), (415, 45388), (581, 32420), (830, 22694), (1162, 16210), (1621, 11620), (1660, 11347), (2324, 8105), (2905, 6484), (3242, 5810)]