28921605

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^2$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 50284032

約数和(自身を除く): 21362427

約数列:

[1, 3, 5, 15, 31, 37, 41, 93, 111, 123, 155, 185, 205, 465, 555, 615, 1147, 1271, 1517, 1681, 3441, 3813, 4551, 5043, 5735, 6355, 7585, 8405, 17205, 19065, 22755, 25215, 47027, 52111, 62197, 141081, 156333, 186591, 235135, 260555, 310985, 705405, 781665, 932955, 1928107, 5784321, 9640535, 28921605]

約数ペア:

[(1, 28921605), (3, 9640535), (5, 5784321), (15, 1928107), (31, 932955), (37, 781665), (41, 705405), (93, 310985), (111, 260555), (123, 235135), (155, 186591), (185, 156333), (205, 141081), (465, 62197), (555, 52111), (615, 47027), (1147, 25215), (1271, 22755), (1517, 19065), (1681, 17205), (3441, 8405), (3813, 7585), (4551, 6355), (5043, 5735)]