278559008

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{331}}^1$

素因数の和:395

約数の個数: 144

約数和(自身を含む): 719175744

約数和(自身を除く): 440616736

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 32, 34, 52, 56, 68, 91, 104, 112, 119, 136, 182, 208, 221, 224, 238, 272, 289, 331, 364, 416, 442, 476, 544, 578, 662, 728, 884, 952, 1156, 1324, 1456, 1547, 1768, 1904, 2023, 2312, 2317, 2648, 2912, 3094, 3536, 3757, 3808, 4046, 4303, 4624, 4634, 5296, 5627, 6188, 7072, 7514, 8092, 8606, 9248, 9268, 10592, 11254, 12376, 15028, 16184, 17212, 18536, 22508, 24752, 26299, 30056, 30121, 32368, 34424, 37072, 39389, 45016, 49504, 52598, 60112, 60242, 64736, 68848, 73151, 74144, 78778, 90032, 95659, 105196, 120224, 120484, 137696, 146302, 157556, 180064, 191318, 210392, 240968, 292604, 315112, 382636, 420784, 481936, 512057, 585208, 630224, 669613, 765272, 841568, 963872, 1024114, 1170416, 1243567, 1260448, 1339226, 1530544, 2048228, 2340832, 2487134, 2678452, 3061088, 4096456, 4974268, 5356904, 8192912, 8704969, 9948536, 10713808, 16385824, 17409938, 19897072, 21427616, 34819876, 39794144, 69639752, 139279504, 278559008]

約数ペア:

[(1, 278559008), (2, 139279504), (4, 69639752), (7, 39794144), (8, 34819876), (13, 21427616), (14, 19897072), (16, 17409938), (17, 16385824), (26, 10713808), (28, 9948536), (32, 8704969), (34, 8192912), (52, 5356904), (56, 4974268), (68, 4096456), (91, 3061088), (104, 2678452), (112, 2487134), (119, 2340832), (136, 2048228), (182, 1530544), (208, 1339226), (221, 1260448), (224, 1243567), (238, 1170416), (272, 1024114), (289, 963872), (331, 841568), (364, 765272), (416, 669613), (442, 630224), (476, 585208), (544, 512057), (578, 481936), (662, 420784), (728, 382636), (884, 315112), (952, 292604), (1156, 240968), (1324, 210392), (1456, 191318), (1547, 180064), (1768, 157556), (1904, 146302), (2023, 137696), (2312, 120484), (2317, 120224), (2648, 105196), (2912, 95659), (3094, 90032), (3536, 78778), (3757, 74144), (3808, 73151), (4046, 68848), (4303, 64736), (4624, 60242), (4634, 60112), (5296, 52598), (5627, 49504), (6188, 45016), (7072, 39389), (7514, 37072), (8092, 34424), (8606, 32368), (9248, 30121), (9268, 30056), (10592, 26299), (11254, 24752), (12376, 22508), (15028, 18536), (16184, 17212)]