280561896

素因数分解:

$2^3\times 3^2\times {\mathrm{71}}^2\times {\mathrm{773}}^1$

素因数の和:927

約数の個数: 72

約数和(自身を含む): 771705090

約数和(自身を除く): 491143194

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 71, 72, 142, 213, 284, 426, 568, 639, 773, 852, 1278, 1546, 1704, 2319, 2556, 3092, 4638, 5041, 5112, 6184, 6957, 9276, 10082, 13914, 15123, 18552, 20164, 27828, 30246, 40328, 45369, 54883, 55656, 60492, 90738, 109766, 120984, 164649, 181476, 219532, 329298, 362952, 439064, 493947, 658596, 987894, 1317192, 1975788, 3896693, 3951576, 7793386, 11690079, 15586772, 23380158, 31173544, 35070237, 46760316, 70140474, 93520632, 140280948, 280561896]

約数ペア:

[(1, 280561896), (2, 140280948), (3, 93520632), (4, 70140474), (6, 46760316), (8, 35070237), (9, 31173544), (12, 23380158), (18, 15586772), (24, 11690079), (36, 7793386), (71, 3951576), (72, 3896693), (142, 1975788), (213, 1317192), (284, 987894), (426, 658596), (568, 493947), (639, 439064), (773, 362952), (852, 329298), (1278, 219532), (1546, 181476), (1704, 164649), (2319, 120984), (2556, 109766), (3092, 90738), (4638, 60492), (5041, 55656), (5112, 54883), (6184, 45369), (6957, 40328), (9276, 30246), (10082, 27828), (13914, 20164), (15123, 18552)]