28557525

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 49871808

約数和(自身を除く): 21314283

約数列:

[1, 3, 5, 15, 25, 37, 41, 75, 111, 123, 185, 205, 251, 555, 615, 753, 925, 1025, 1255, 1517, 2775, 3075, 3765, 4551, 6275, 7585, 9287, 10291, 18825, 22755, 27861, 30873, 37925, 46435, 51455, 113775, 139305, 154365, 232175, 257275, 380767, 696525, 771825, 1142301, 1903835, 5711505, 9519175, 28557525]

約数ペア:

[(1, 28557525), (3, 9519175), (5, 5711505), (15, 1903835), (25, 1142301), (37, 771825), (41, 696525), (75, 380767), (111, 257275), (123, 232175), (185, 154365), (205, 139305), (251, 113775), (555, 51455), (615, 46435), (753, 37925), (925, 30873), (1025, 27861), (1255, 22755), (1517, 18825), (2775, 10291), (3075, 9287), (3765, 7585), (4551, 6275)]