278399935

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{2179}}^1$

素因数の和:2319

約数の個数: 32

約数和(自身を含む): 384238080

約数和(自身を除く): 105838145

約数列:

[1, 5, 11, 23, 55, 101, 115, 253, 505, 1111, 1265, 2179, 2323, 5555, 10895, 11615, 23969, 25553, 50117, 119845, 127765, 220079, 250585, 551287, 1100395, 2420869, 2756435, 5061817, 12104345, 25309085, 55679987, 278399935]

約数ペア:

[(1, 278399935), (5, 55679987), (11, 25309085), (23, 12104345), (55, 5061817), (101, 2756435), (115, 2420869), (253, 1100395), (505, 551287), (1111, 250585), (1265, 220079), (2179, 127765), (2323, 119845), (5555, 50117), (10895, 25553), (11615, 23969)]