28300665

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 23020935

約数列:

[1, 3, 5, 15, 17, 29, 43, 51, 85, 87, 89, 129, 145, 215, 255, 267, 435, 445, 493, 645, 731, 1247, 1335, 1479, 1513, 2193, 2465, 2581, 3655, 3741, 3827, 4539, 6235, 7395, 7565, 7743, 10965, 11481, 12905, 18705, 19135, 21199, 22695, 38715, 43877, 57405, 63597, 65059, 105995, 110983, 131631, 195177, 219385, 317985, 325295, 332949, 554915, 658155, 975885, 1664745, 1886711, 5660133, 9433555, 28300665]

約数ペア:

[(1, 28300665), (3, 9433555), (5, 5660133), (15, 1886711), (17, 1664745), (29, 975885), (43, 658155), (51, 554915), (85, 332949), (87, 325295), (89, 317985), (129, 219385), (145, 195177), (215, 131631), (255, 110983), (267, 105995), (435, 65059), (445, 63597), (493, 57405), (645, 43877), (731, 38715), (1247, 22695), (1335, 21199), (1479, 19135), (1513, 18705), (2193, 12905), (2465, 11481), (2581, 10965), (3655, 7743), (3741, 7565), (3827, 7395), (4539, 6235)]