261319240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:192

約数の個数: 256

約数和(自身を含む): 792529920

約数和(自身を除く): 531210680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 41, 52, 56, 65, 68, 70, 82, 85, 91, 103, 104, 119, 130, 136, 140, 164, 170, 182, 205, 206, 221, 238, 260, 280, 287, 328, 340, 364, 410, 412, 442, 455, 476, 515, 520, 533, 574, 595, 680, 697, 721, 728, 820, 824, 884, 910, 952, 1030, 1066, 1105, 1148, 1190, 1339, 1394, 1435, 1442, 1547, 1640, 1751, 1768, 1820, 2060, 2132, 2210, 2296, 2380, 2665, 2678, 2788, 2870, 2884, 3094, 3485, 3502, 3605, 3640, 3731, 4120, 4223, 4264, 4420, 4760, 4879, 5330, 5356, 5576, 5740, 5768, 6188, 6695, 6970, 7004, 7210, 7462, 7735, 8446, 8755, 8840, 9061, 9373, 9758, 10660, 10712, 11480, 12257, 12376, 13390, 13940, 14008, 14420, 14924, 15470, 16892, 17510, 18122, 18655, 18746, 19516, 21115, 21320, 22763, 24395, 24514, 26780, 27880, 28840, 29561, 29848, 30940, 33784, 35020, 36244, 37310, 37492, 39032, 42230, 45305, 45526, 46865, 48790, 49028, 53560, 54899, 59122, 61285, 61880, 63427, 70040, 71791, 72488, 74620, 74984, 84460, 90610, 91052, 93730, 97580, 98056, 109798, 113815, 118244, 122570, 126854, 143582, 147805, 149240, 159341, 168920, 181220, 182104, 187460, 195160, 219596, 227630, 236488, 245140, 253708, 274495, 287164, 295610, 317135, 318682, 358955, 362440, 374920, 384293, 439192, 455260, 490280, 502537, 507416, 548990, 574328, 591220, 634270, 637364, 717910, 768586, 796705, 910520, 933283, 1005074, 1097980, 1182440, 1268540, 1274728, 1435820, 1537172, 1593410, 1866566, 1921465, 2010148, 2195960, 2512685, 2537080, 2871640, 3074344, 3186820, 3733132, 3842930, 4020296, 4666415, 5025370, 6373640, 6532981, 7466264, 7685860, 9332830, 10050740, 13065962, 15371720, 18665660, 20101480, 26131924, 32664905, 37331320, 52263848, 65329810, 130659620, 261319240]

約数ペア:

[(1, 261319240), (2, 130659620), (4, 65329810), (5, 52263848), (7, 37331320), (8, 32664905), (10, 26131924), (13, 20101480), (14, 18665660), (17, 15371720), (20, 13065962), (26, 10050740), (28, 9332830), (34, 7685860), (35, 7466264), (40, 6532981), (41, 6373640), (52, 5025370), (56, 4666415), (65, 4020296), (68, 3842930), (70, 3733132), (82, 3186820), (85, 3074344), (91, 2871640), (103, 2537080), (104, 2512685), (119, 2195960), (130, 2010148), (136, 1921465), (140, 1866566), (164, 1593410), (170, 1537172), (182, 1435820), (205, 1274728), (206, 1268540), (221, 1182440), (238, 1097980), (260, 1005074), (280, 933283), (287, 910520), (328, 796705), (340, 768586), (364, 717910), (410, 637364), (412, 634270), (442, 591220), (455, 574328), (476, 548990), (515, 507416), (520, 502537), (533, 490280), (574, 455260), (595, 439192), (680, 384293), (697, 374920), (721, 362440), (728, 358955), (820, 318682), (824, 317135), (884, 295610), (910, 287164), (952, 274495), (1030, 253708), (1066, 245140), (1105, 236488), (1148, 227630), (1190, 219596), (1339, 195160), (1394, 187460), (1435, 182104), (1442, 181220), (1547, 168920), (1640, 159341), (1751, 149240), (1768, 147805), (1820, 143582), (2060, 126854), (2132, 122570), (2210, 118244), (2296, 113815), (2380, 109798), (2665, 98056), (2678, 97580), (2788, 93730), (2870, 91052), (2884, 90610), (3094, 84460), (3485, 74984), (3502, 74620), (3605, 72488), (3640, 71791), (3731, 70040), (4120, 63427), (4223, 61880), (4264, 61285), (4420, 59122), (4760, 54899), (4879, 53560), (5330, 49028), (5356, 48790), (5576, 46865), (5740, 45526), (5768, 45305), (6188, 42230), (6695, 39032), (6970, 37492), (7004, 37310), (7210, 36244), (7462, 35020), (7735, 33784), (8446, 30940), (8755, 29848), (8840, 29561), (9061, 28840), (9373, 27880), (9758, 26780), (10660, 24514), (10712, 24395), (11480, 22763), (12257, 21320), (12376, 21115), (13390, 19516), (13940, 18746), (14008, 18655), (14420, 18122), (14924, 17510), (15470, 16892)]