218762545

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{751}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 292377600

約数和(自身を除く): 73615055

約数列:

[1, 5, 17, 23, 85, 115, 149, 391, 745, 751, 1955, 2533, 3427, 3755, 12665, 12767, 17135, 17273, 58259, 63835, 86365, 111899, 291295, 293641, 559495, 1468205, 1902283, 2573677, 9511415, 12868385, 43752509, 218762545]

約数ペア:

[(1, 218762545), (5, 43752509), (17, 12868385), (23, 9511415), (85, 2573677), (115, 1902283), (149, 1468205), (391, 559495), (745, 293641), (751, 291295), (1955, 111899), (2533, 86365), (3427, 63835), (3755, 58259), (12665, 17273), (12767, 17135)]