278718272

素因数分解:

$2^6\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 168

約数和(自身を含む): 689384448

約数和(自身を除く): 410666176

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 47, 49, 56, 61, 62, 64, 94, 98, 112, 122, 124, 188, 196, 217, 224, 244, 248, 329, 376, 392, 427, 434, 448, 488, 496, 658, 752, 784, 854, 868, 976, 992, 1316, 1457, 1504, 1519, 1568, 1708, 1736, 1891, 1952, 1984, 2303, 2632, 2867, 2914, 2989, 3008, 3038, 3136, 3416, 3472, 3782, 3904, 4606, 5264, 5734, 5828, 5978, 6076, 6832, 6944, 7564, 9212, 10199, 10528, 11468, 11656, 11956, 12152, 13237, 13664, 13888, 15128, 18424, 20069, 20398, 21056, 22936, 23312, 23912, 24304, 26474, 27328, 30256, 36848, 40138, 40796, 45872, 46624, 47824, 48608, 52948, 60512, 71393, 73696, 80276, 81592, 88877, 91744, 92659, 93248, 95648, 97216, 105896, 121024, 140483, 142786, 147392, 160552, 163184, 177754, 183488, 185318, 191296, 211792, 280966, 285572, 321104, 326368, 355508, 370636, 423584, 561932, 571144, 622139, 642208, 652736, 711016, 741272, 847168, 1123864, 1142288, 1244278, 1284416, 1422032, 1482544, 2247728, 2284576, 2488556, 2844064, 2965088, 4354973, 4495456, 4569152, 4977112, 5688128, 5930176, 8709946, 8990912, 9954224, 17419892, 19908448, 34839784, 39816896, 69679568, 139359136, 278718272]

約数ペア:

[(1, 278718272), (2, 139359136), (4, 69679568), (7, 39816896), (8, 34839784), (14, 19908448), (16, 17419892), (28, 9954224), (31, 8990912), (32, 8709946), (47, 5930176), (49, 5688128), (56, 4977112), (61, 4569152), (62, 4495456), (64, 4354973), (94, 2965088), (98, 2844064), (112, 2488556), (122, 2284576), (124, 2247728), (188, 1482544), (196, 1422032), (217, 1284416), (224, 1244278), (244, 1142288), (248, 1123864), (329, 847168), (376, 741272), (392, 711016), (427, 652736), (434, 642208), (448, 622139), (488, 571144), (496, 561932), (658, 423584), (752, 370636), (784, 355508), (854, 326368), (868, 321104), (976, 285572), (992, 280966), (1316, 211792), (1457, 191296), (1504, 185318), (1519, 183488), (1568, 177754), (1708, 163184), (1736, 160552), (1891, 147392), (1952, 142786), (1984, 140483), (2303, 121024), (2632, 105896), (2867, 97216), (2914, 95648), (2989, 93248), (3008, 92659), (3038, 91744), (3136, 88877), (3416, 81592), (3472, 80276), (3782, 73696), (3904, 71393), (4606, 60512), (5264, 52948), (5734, 48608), (5828, 47824), (5978, 46624), (6076, 45872), (6832, 40796), (6944, 40138), (7564, 36848), (9212, 30256), (10199, 27328), (10528, 26474), (11468, 24304), (11656, 23912), (11956, 23312), (12152, 22936), (13237, 21056), (13664, 20398), (13888, 20069), (15128, 18424)]