64350020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{1097}}^1$

素因数の和:1532

約数の個数: 48

約数和(自身を含む): 154949760

約数和(自身を除く): 90599740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 419, 838, 1097, 1676, 2095, 2194, 2933, 4190, 4388, 5485, 5866, 7679, 8380, 10970, 11732, 14665, 15358, 21940, 29330, 30716, 38395, 58660, 76790, 153580, 459643, 919286, 1838572, 2298215, 3217501, 4596430, 6435002, 9192860, 12870004, 16087505, 32175010, 64350020]

約数ペア:

[(1, 64350020), (2, 32175010), (4, 16087505), (5, 12870004), (7, 9192860), (10, 6435002), (14, 4596430), (20, 3217501), (28, 2298215), (35, 1838572), (70, 919286), (140, 459643), (419, 153580), (838, 76790), (1097, 58660), (1676, 38395), (2095, 30716), (2194, 29330), (2933, 21940), (4190, 15358), (4388, 14665), (5485, 11732), (5866, 10970), (7679, 8380)]