640817244

素因数分解:

$2^2\times 3^7\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 192

約数和(自身を含む): 1851494400

約数和(自身を除く): 1210677156

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 31, 34, 36, 51, 54, 62, 68, 81, 93, 102, 108, 124, 139, 153, 162, 186, 204, 243, 278, 279, 306, 324, 372, 417, 459, 486, 527, 556, 558, 612, 729, 834, 837, 918, 972, 1054, 1116, 1251, 1377, 1458, 1581, 1668, 1674, 1836, 2108, 2187, 2363, 2502, 2511, 2754, 2916, 3162, 3348, 3753, 4131, 4309, 4374, 4726, 4743, 5004, 5022, 5508, 6324, 7089, 7506, 7533, 8262, 8618, 8748, 9452, 9486, 10044, 11259, 12393, 12927, 14178, 14229, 15012, 15066, 16524, 17236, 18972, 21267, 22518, 22599, 24786, 25854, 28356, 28458, 30132, 33777, 37179, 38781, 42534, 42687, 45036, 45198, 49572, 51708, 56916, 63801, 67554, 67797, 73253, 74358, 77562, 85068, 85374, 90396, 101331, 116343, 127602, 128061, 135108, 135594, 146506, 148716, 155124, 170748, 191403, 202662, 219759, 232686, 255204, 256122, 271188, 293012, 303993, 349029, 382806, 384183, 405324, 439518, 465372, 512244, 574209, 607986, 659277, 698058, 765612, 768366, 879036, 1047087, 1148418, 1152549, 1215972, 1318554, 1396116, 1536732, 1722627, 1977831, 2094174, 2296836, 2305098, 2637108, 3141261, 3445254, 3955662, 4188348, 4610196, 5167881, 5933493, 6282522, 6890508, 7911324, 9423783, 10335762, 11866986, 12565044, 17800479, 18847566, 20671524, 23733972, 35600958, 37695132, 53401437, 71201916, 106802874, 160204311, 213605748, 320408622, 640817244]

約数ペア:

[(1, 640817244), (2, 320408622), (3, 213605748), (4, 160204311), (6, 106802874), (9, 71201916), (12, 53401437), (17, 37695132), (18, 35600958), (27, 23733972), (31, 20671524), (34, 18847566), (36, 17800479), (51, 12565044), (54, 11866986), (62, 10335762), (68, 9423783), (81, 7911324), (93, 6890508), (102, 6282522), (108, 5933493), (124, 5167881), (139, 4610196), (153, 4188348), (162, 3955662), (186, 3445254), (204, 3141261), (243, 2637108), (278, 2305098), (279, 2296836), (306, 2094174), (324, 1977831), (372, 1722627), (417, 1536732), (459, 1396116), (486, 1318554), (527, 1215972), (556, 1152549), (558, 1148418), (612, 1047087), (729, 879036), (834, 768366), (837, 765612), (918, 698058), (972, 659277), (1054, 607986), (1116, 574209), (1251, 512244), (1377, 465372), (1458, 439518), (1581, 405324), (1668, 384183), (1674, 382806), (1836, 349029), (2108, 303993), (2187, 293012), (2363, 271188), (2502, 256122), (2511, 255204), (2754, 232686), (2916, 219759), (3162, 202662), (3348, 191403), (3753, 170748), (4131, 155124), (4309, 148716), (4374, 146506), (4726, 135594), (4743, 135108), (5004, 128061), (5022, 127602), (5508, 116343), (6324, 101331), (7089, 90396), (7506, 85374), (7533, 85068), (8262, 77562), (8618, 74358), (8748, 73253), (9452, 67797), (9486, 67554), (10044, 63801), (11259, 56916), (12393, 51708), (12927, 49572), (14178, 45198), (14229, 45036), (15012, 42687), (15066, 42534), (16524, 38781), (17236, 37179), (18972, 33777), (21267, 30132), (22518, 28458), (22599, 28356), (24786, 25854)]