85820140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{2213}}^1$

素因数の和:2506

約数の個数: 48

約数和(自身を含む): 206805312

約数和(自身を除く): 120985172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 554, 1108, 1385, 1939, 2213, 2770, 3878, 4426, 5540, 7756, 8852, 9695, 11065, 15491, 19390, 22130, 30982, 38780, 44260, 61964, 77455, 154910, 309820, 613001, 1226002, 2452004, 3065005, 4291007, 6130010, 8582014, 12260020, 17164028, 21455035, 42910070, 85820140]

約数ペア:

[(1, 85820140), (2, 42910070), (4, 21455035), (5, 17164028), (7, 12260020), (10, 8582014), (14, 6130010), (20, 4291007), (28, 3065005), (35, 2452004), (70, 1226002), (140, 613001), (277, 309820), (554, 154910), (1108, 77455), (1385, 61964), (1939, 44260), (2213, 38780), (2770, 30982), (3878, 22130), (4426, 19390), (5540, 15491), (7756, 11065), (8852, 9695)]