256531860

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{937}}^1$

素因数の和:984

約数の個数: 180

約数和(自身を含む): 872345628

約数和(自身を除く): 615813768

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 169, 180, 195, 234, 260, 270, 324, 338, 351, 390, 405, 468, 507, 540, 585, 676, 702, 780, 810, 845, 937, 1014, 1053, 1170, 1404, 1521, 1620, 1690, 1755, 1874, 2028, 2106, 2340, 2535, 2811, 3042, 3380, 3510, 3748, 4212, 4563, 4685, 5070, 5265, 5622, 6084, 7020, 7605, 8433, 9126, 9370, 10140, 10530, 11244, 12181, 13689, 14055, 15210, 16866, 18252, 18740, 21060, 22815, 24362, 25299, 27378, 28110, 30420, 33732, 36543, 42165, 45630, 48724, 50598, 54756, 56220, 60905, 68445, 73086, 75897, 84330, 91260, 101196, 109629, 121810, 126495, 136890, 146172, 151794, 158353, 168660, 182715, 219258, 243620, 252990, 273780, 303588, 316706, 328887, 365430, 379485, 438516, 475059, 505980, 548145, 633412, 657774, 730860, 758970, 791765, 950118, 986661, 1096290, 1315548, 1425177, 1517940, 1583530, 1644435, 1900236, 1973322, 2192580, 2375295, 2850354, 3167060, 3288870, 3946644, 4275531, 4750590, 4933305, 5700708, 6577740, 7125885, 8551062, 9501180, 9866610, 12826593, 14251770, 17102124, 19733220, 21377655, 25653186, 28503540, 42755310, 51306372, 64132965, 85510620, 128265930, 256531860]

約数ペア:

[(1, 256531860), (2, 128265930), (3, 85510620), (4, 64132965), (5, 51306372), (6, 42755310), (9, 28503540), (10, 25653186), (12, 21377655), (13, 19733220), (15, 17102124), (18, 14251770), (20, 12826593), (26, 9866610), (27, 9501180), (30, 8551062), (36, 7125885), (39, 6577740), (45, 5700708), (52, 4933305), (54, 4750590), (60, 4275531), (65, 3946644), (78, 3288870), (81, 3167060), (90, 2850354), (108, 2375295), (117, 2192580), (130, 1973322), (135, 1900236), (156, 1644435), (162, 1583530), (169, 1517940), (180, 1425177), (195, 1315548), (234, 1096290), (260, 986661), (270, 950118), (324, 791765), (338, 758970), (351, 730860), (390, 657774), (405, 633412), (468, 548145), (507, 505980), (540, 475059), (585, 438516), (676, 379485), (702, 365430), (780, 328887), (810, 316706), (845, 303588), (937, 273780), (1014, 252990), (1053, 243620), (1170, 219258), (1404, 182715), (1521, 168660), (1620, 158353), (1690, 151794), (1755, 146172), (1874, 136890), (2028, 126495), (2106, 121810), (2340, 109629), (2535, 101196), (2811, 91260), (3042, 84330), (3380, 75897), (3510, 73086), (3748, 68445), (4212, 60905), (4563, 56220), (4685, 54756), (5070, 50598), (5265, 48724), (5622, 45630), (6084, 42165), (7020, 36543), (7605, 33732), (8433, 30420), (9126, 28110), (9370, 27378), (10140, 25299), (10530, 24362), (11244, 22815), (12181, 21060), (13689, 18740), (14055, 18252), (15210, 16866)]