205189970

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1\times {\mathrm{1279}}^1$

素因数の和:1610

約数の個数: 32

約数和(自身を含む): 377118720

約数和(自身を除く): 171928750

約数列:

[1, 2, 5, 10, 61, 122, 263, 305, 526, 610, 1279, 1315, 2558, 2630, 6395, 12790, 16043, 32086, 78019, 80215, 156038, 160430, 336377, 390095, 672754, 780190, 1681885, 3363770, 20518997, 41037994, 102594985, 205189970]

約数ペア:

[(1, 205189970), (2, 102594985), (5, 41037994), (10, 20518997), (61, 3363770), (122, 1681885), (263, 780190), (305, 672754), (526, 390095), (610, 336377), (1279, 160430), (1315, 156038), (2558, 80215), (2630, 78019), (6395, 32086), (12790, 16043)]