686197728

素因数分解:

$2^5\times 3^2\times {\mathrm{109}}^1\times {\mathrm{21859}}^1$

素因数の和:21984

約数の個数: 72

約数和(自身を含む): 1969367400

約数和(自身を除く): 1283169672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 109, 144, 218, 288, 327, 436, 654, 872, 981, 1308, 1744, 1962, 2616, 3488, 3924, 5232, 7848, 10464, 15696, 21859, 31392, 43718, 65577, 87436, 131154, 174872, 196731, 262308, 349744, 393462, 524616, 699488, 786924, 1049232, 1573848, 2098464, 2382631, 3147696, 4765262, 6295392, 7147893, 9530524, 14295786, 19061048, 21443679, 28591572, 38122096, 42887358, 57183144, 76244192, 85774716, 114366288, 171549432, 228732576, 343098864, 686197728]

約数ペア:

[(1, 686197728), (2, 343098864), (3, 228732576), (4, 171549432), (6, 114366288), (8, 85774716), (9, 76244192), (12, 57183144), (16, 42887358), (18, 38122096), (24, 28591572), (32, 21443679), (36, 19061048), (48, 14295786), (72, 9530524), (96, 7147893), (109, 6295392), (144, 4765262), (218, 3147696), (288, 2382631), (327, 2098464), (436, 1573848), (654, 1049232), (872, 786924), (981, 699488), (1308, 524616), (1744, 393462), (1962, 349744), (2616, 262308), (3488, 196731), (3924, 174872), (5232, 131154), (7848, 87436), (10464, 65577), (15696, 43718), (21859, 31392)]