18278128

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:226

約数の個数: 80

約数和(自身を含む): 42184800

約数和(自身を除く): 23906672

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 41, 44, 68, 82, 88, 136, 149, 164, 176, 187, 272, 298, 328, 374, 451, 596, 656, 697, 748, 902, 1192, 1394, 1496, 1639, 1804, 2384, 2533, 2788, 2992, 3278, 3608, 5066, 5576, 6109, 6556, 7216, 7667, 10132, 11152, 12218, 13112, 15334, 20264, 24436, 26224, 27863, 30668, 40528, 48872, 55726, 61336, 67199, 97744, 103853, 111452, 122672, 134398, 207706, 222904, 268796, 415412, 445808, 537592, 830824, 1075184, 1142383, 1661648, 2284766, 4569532, 9139064, 18278128]

約数ペア:

[(1, 18278128), (2, 9139064), (4, 4569532), (8, 2284766), (11, 1661648), (16, 1142383), (17, 1075184), (22, 830824), (34, 537592), (41, 445808), (44, 415412), (68, 268796), (82, 222904), (88, 207706), (136, 134398), (149, 122672), (164, 111452), (176, 103853), (187, 97744), (272, 67199), (298, 61336), (328, 55726), (374, 48872), (451, 40528), (596, 30668), (656, 27863), (697, 26224), (748, 24436), (902, 20264), (1192, 15334), (1394, 13112), (1496, 12218), (1639, 11152), (1804, 10132), (2384, 7667), (2533, 7216), (2788, 6556), (2992, 6109), (3278, 5576), (3608, 5066)]