64904420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{643}}^1$

素因数の和:769

約数の個数: 72

約数和(自身を含む): 160340544

約数和(自身を除く): 95436124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 196, 206, 245, 412, 490, 515, 643, 721, 980, 1030, 1286, 1442, 2060, 2572, 2884, 3215, 3605, 4501, 5047, 6430, 7210, 9002, 10094, 12860, 14420, 18004, 20188, 22505, 25235, 31507, 45010, 50470, 63014, 66229, 90020, 100940, 126028, 132458, 157535, 264916, 315070, 331145, 463603, 630140, 662290, 927206, 1324580, 1854412, 2318015, 3245221, 4636030, 6490442, 9272060, 12980884, 16226105, 32452210, 64904420]

約数ペア:

[(1, 64904420), (2, 32452210), (4, 16226105), (5, 12980884), (7, 9272060), (10, 6490442), (14, 4636030), (20, 3245221), (28, 2318015), (35, 1854412), (49, 1324580), (70, 927206), (98, 662290), (103, 630140), (140, 463603), (196, 331145), (206, 315070), (245, 264916), (412, 157535), (490, 132458), (515, 126028), (643, 100940), (721, 90020), (980, 66229), (1030, 63014), (1286, 50470), (1442, 45010), (2060, 31507), (2572, 25235), (2884, 22505), (3215, 20188), (3605, 18004), (4501, 14420), (5047, 12860), (6430, 10094), (7210, 9002)]