217212840

素因数分解:

$2^3\times 3^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1$

素因数の和:236

約数の個数: 256

約数和(自身を含む): 793497600

約数和(自身を除く): 576284760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 81, 90, 104, 108, 117, 120, 130, 135, 156, 162, 180, 191, 195, 216, 234, 243, 260, 270, 312, 324, 351, 360, 382, 390, 405, 468, 486, 520, 540, 573, 585, 648, 702, 729, 764, 780, 810, 936, 955, 972, 1053, 1080, 1146, 1170, 1215, 1404, 1458, 1528, 1560, 1620, 1719, 1755, 1910, 1944, 2106, 2187, 2292, 2340, 2430, 2483, 2808, 2865, 2916, 3159, 3240, 3438, 3510, 3645, 3820, 4212, 4374, 4584, 4680, 4860, 4966, 5157, 5265, 5730, 5832, 6318, 6876, 7020, 7290, 7449, 7640, 8424, 8595, 8748, 9477, 9720, 9932, 10314, 10530, 10935, 11460, 12415, 12636, 13752, 14040, 14580, 14898, 15471, 15795, 17190, 17496, 18954, 19864, 20628, 21060, 21870, 22347, 22920, 24830, 25272, 25785, 28431, 29160, 29796, 30942, 31590, 34380, 37245, 37908, 41256, 42120, 43740, 44694, 46413, 47385, 49660, 51570, 56862, 59592, 61884, 63180, 67041, 68760, 74490, 75816, 77355, 87480, 89388, 92826, 94770, 99320, 103140, 111735, 113724, 123768, 126360, 134082, 139239, 142155, 148980, 154710, 178776, 185652, 189540, 201123, 206280, 223470, 227448, 232065, 268164, 278478, 284310, 297960, 309420, 335205, 371304, 379080, 402246, 417717, 446940, 464130, 536328, 556956, 568620, 603369, 618840, 670410, 696195, 804492, 835434, 893880, 928260, 1005615, 1113912, 1137240, 1206738, 1340820, 1392390, 1608984, 1670868, 1810107, 1856520, 2011230, 2088585, 2413476, 2681640, 2784780, 3016845, 3341736, 3620214, 4022460, 4177170, 4826952, 5430321, 5569560, 6033690, 7240428, 8044920, 8354340, 9050535, 10860642, 12067380, 14480856, 16708680, 18101070, 21721284, 24134760, 27151605, 36202140, 43442568, 54303210, 72404280, 108606420, 217212840]

約数ペア:

[(1, 217212840), (2, 108606420), (3, 72404280), (4, 54303210), (5, 43442568), (6, 36202140), (8, 27151605), (9, 24134760), (10, 21721284), (12, 18101070), (13, 16708680), (15, 14480856), (18, 12067380), (20, 10860642), (24, 9050535), (26, 8354340), (27, 8044920), (30, 7240428), (36, 6033690), (39, 5569560), (40, 5430321), (45, 4826952), (52, 4177170), (54, 4022460), (60, 3620214), (65, 3341736), (72, 3016845), (78, 2784780), (81, 2681640), (90, 2413476), (104, 2088585), (108, 2011230), (117, 1856520), (120, 1810107), (130, 1670868), (135, 1608984), (156, 1392390), (162, 1340820), (180, 1206738), (191, 1137240), (195, 1113912), (216, 1005615), (234, 928260), (243, 893880), (260, 835434), (270, 804492), (312, 696195), (324, 670410), (351, 618840), (360, 603369), (382, 568620), (390, 556956), (405, 536328), (468, 464130), (486, 446940), (520, 417717), (540, 402246), (573, 379080), (585, 371304), (648, 335205), (702, 309420), (729, 297960), (764, 284310), (780, 278478), (810, 268164), (936, 232065), (955, 227448), (972, 223470), (1053, 206280), (1080, 201123), (1146, 189540), (1170, 185652), (1215, 178776), (1404, 154710), (1458, 148980), (1528, 142155), (1560, 139239), (1620, 134082), (1719, 126360), (1755, 123768), (1910, 113724), (1944, 111735), (2106, 103140), (2187, 99320), (2292, 94770), (2340, 92826), (2430, 89388), (2483, 87480), (2808, 77355), (2865, 75816), (2916, 74490), (3159, 68760), (3240, 67041), (3438, 63180), (3510, 61884), (3645, 59592), (3820, 56862), (4212, 51570), (4374, 49660), (4584, 47385), (4680, 46413), (4860, 44694), (4966, 43740), (5157, 42120), (5265, 41256), (5730, 37908), (5832, 37245), (6318, 34380), (6876, 31590), (7020, 30942), (7290, 29796), (7449, 29160), (7640, 28431), (8424, 25785), (8595, 25272), (8748, 24830), (9477, 22920), (9720, 22347), (9932, 21870), (10314, 21060), (10530, 20628), (10935, 19864), (11460, 18954), (12415, 17496), (12636, 17190), (13752, 15795), (14040, 15471), (14580, 14898)]