400695088

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 841017600

約数和(自身を除く): 440322512

約数列:

[1, 2, 4, 8, 16, 29, 31, 58, 62, 89, 116, 124, 178, 232, 248, 313, 356, 464, 496, 626, 712, 899, 1252, 1424, 1798, 2504, 2581, 2759, 3596, 5008, 5162, 5518, 7192, 9077, 9703, 10324, 11036, 14384, 18154, 19406, 20648, 22072, 27857, 36308, 38812, 41296, 44144, 55714, 72616, 77624, 80011, 111428, 145232, 155248, 160022, 222856, 281387, 320044, 445712, 562774, 640088, 807853, 863567, 1125548, 1280176, 1615706, 1727134, 2251096, 3231412, 3454268, 4502192, 6462824, 6908536, 12925648, 13817072, 25043443, 50086886, 100173772, 200347544, 400695088]

約数ペア:

[(1, 400695088), (2, 200347544), (4, 100173772), (8, 50086886), (16, 25043443), (29, 13817072), (31, 12925648), (58, 6908536), (62, 6462824), (89, 4502192), (116, 3454268), (124, 3231412), (178, 2251096), (232, 1727134), (248, 1615706), (313, 1280176), (356, 1125548), (464, 863567), (496, 807853), (626, 640088), (712, 562774), (899, 445712), (1252, 320044), (1424, 281387), (1798, 222856), (2504, 160022), (2581, 155248), (2759, 145232), (3596, 111428), (5008, 80011), (5162, 77624), (5518, 72616), (7192, 55714), (9077, 44144), (9703, 41296), (10324, 38812), (11036, 36308), (14384, 27857), (18154, 22072), (19406, 20648)]