640720413780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1\times {\mathrm{15817}}^1$

素因数の和:16194

約数の個数: 192

約数和(自身を含む): 1875843712512

約数和(自身を除く): 1235123298732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 71, 74, 111, 142, 148, 185, 213, 222, 257, 284, 355, 370, 426, 444, 514, 555, 710, 740, 771, 852, 1028, 1065, 1110, 1285, 1420, 1542, 2130, 2220, 2570, 2627, 3084, 3855, 4260, 5140, 5254, 7710, 7881, 9509, 10508, 13135, 15420, 15762, 15817, 18247, 19018, 26270, 28527, 31524, 31634, 36494, 38036, 39405, 47451, 47545, 52540, 54741, 57054, 63268, 72988, 78810, 79085, 91235, 94902, 95090, 109482, 114108, 142635, 157620, 158170, 182470, 189804, 190180, 218964, 237255, 273705, 285270, 316340, 364940, 474510, 547410, 570540, 585229, 675139, 949020, 1094820, 1123007, 1170458, 1350278, 1755687, 2025417, 2246014, 2340916, 2700556, 2926145, 3369021, 3375695, 3511374, 4050834, 4064969, 4492028, 5615035, 5852290, 6738042, 6751390, 7022748, 8101668, 8129938, 8778435, 10127085, 11230070, 11704580, 12194907, 13476084, 13502780, 16259876, 16845105, 17556870, 20254170, 20324845, 22460140, 24389814, 33690210, 35113740, 40508340, 40649690, 41551259, 48779628, 60974535, 67380420, 81299380, 83102518, 121949070, 124653777, 150403853, 166205036, 207756295, 243898140, 249307554, 288612799, 300807706, 415512590, 451211559, 498615108, 577225598, 601615412, 623268885, 752019265, 831025180, 865838397, 902423118, 1154451196, 1246537770, 1443063995, 1504038530, 1731676794, 1804846236, 2256057795, 2493075540, 2886127990, 3008077060, 3463353588, 4329191985, 4512115590, 5772255980, 8658383970, 9024231180, 10678673563, 17316767940, 21357347126, 32036020689, 42714694252, 53393367815, 64072041378, 106786735630, 128144082756, 160180103445, 213573471260, 320360206890, 640720413780]

約数ペア:

[(1, 640720413780), (2, 320360206890), (3, 213573471260), (4, 160180103445), (5, 128144082756), (6, 106786735630), (10, 64072041378), (12, 53393367815), (15, 42714694252), (20, 32036020689), (30, 21357347126), (37, 17316767940), (60, 10678673563), (71, 9024231180), (74, 8658383970), (111, 5772255980), (142, 4512115590), (148, 4329191985), (185, 3463353588), (213, 3008077060), (222, 2886127990), (257, 2493075540), (284, 2256057795), (355, 1804846236), (370, 1731676794), (426, 1504038530), (444, 1443063995), (514, 1246537770), (555, 1154451196), (710, 902423118), (740, 865838397), (771, 831025180), (852, 752019265), (1028, 623268885), (1065, 601615412), (1110, 577225598), (1285, 498615108), (1420, 451211559), (1542, 415512590), (2130, 300807706), (2220, 288612799), (2570, 249307554), (2627, 243898140), (3084, 207756295), (3855, 166205036), (4260, 150403853), (5140, 124653777), (5254, 121949070), (7710, 83102518), (7881, 81299380), (9509, 67380420), (10508, 60974535), (13135, 48779628), (15420, 41551259), (15762, 40649690), (15817, 40508340), (18247, 35113740), (19018, 33690210), (26270, 24389814), (28527, 22460140), (31524, 20324845), (31634, 20254170), (36494, 17556870), (38036, 16845105), (39405, 16259876), (47451, 13502780), (47545, 13476084), (52540, 12194907), (54741, 11704580), (57054, 11230070), (63268, 10127085), (72988, 8778435), (78810, 8129938), (79085, 8101668), (91235, 7022748), (94902, 6751390), (95090, 6738042), (109482, 5852290), (114108, 5615035), (142635, 4492028), (157620, 4064969), (158170, 4050834), (182470, 3511374), (189804, 3375695), (190180, 3369021), (218964, 2926145), (237255, 2700556), (273705, 2340916), (285270, 2246014), (316340, 2025417), (364940, 1755687), (474510, 1350278), (547410, 1170458), (570540, 1123007), (585229, 1094820), (675139, 949020)]