18726656

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 42752304

約数和(自身を除く): 24025648

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 208, 221, 256, 272, 331, 416, 442, 544, 662, 832, 884, 1088, 1324, 1664, 1768, 2176, 2648, 3328, 3536, 4303, 4352, 5296, 5627, 7072, 8606, 10592, 11254, 14144, 17212, 21184, 22508, 28288, 34424, 42368, 45016, 56576, 68848, 73151, 84736, 90032, 137696, 146302, 180064, 275392, 292604, 360128, 550784, 585208, 720256, 1101568, 1170416, 1440512, 2340832, 4681664, 9363328, 18726656]

約数ペア:

[(1, 18726656), (2, 9363328), (4, 4681664), (8, 2340832), (13, 1440512), (16, 1170416), (17, 1101568), (26, 720256), (32, 585208), (34, 550784), (52, 360128), (64, 292604), (68, 275392), (104, 180064), (128, 146302), (136, 137696), (208, 90032), (221, 84736), (256, 73151), (272, 68848), (331, 56576), (416, 45016), (442, 42368), (544, 34424), (662, 28288), (832, 22508), (884, 21184), (1088, 17212), (1324, 14144), (1664, 11254), (1768, 10592), (2176, 8606), (2648, 7072), (3328, 5627), (3536, 5296), (4303, 4352)]