31987965

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 55878912

約数和(自身を除く): 23890947

約数列:

[1, 3, 5, 15, 17, 47, 51, 85, 141, 157, 235, 255, 289, 471, 705, 785, 799, 867, 1445, 2355, 2397, 2669, 3995, 4335, 7379, 8007, 11985, 13345, 13583, 22137, 36895, 40035, 40749, 45373, 67915, 110685, 125443, 136119, 203745, 226865, 376329, 627215, 680595, 1881645, 2132531, 6397593, 10662655, 31987965]

約数ペア:

[(1, 31987965), (3, 10662655), (5, 6397593), (15, 2132531), (17, 1881645), (47, 680595), (51, 627215), (85, 376329), (141, 226865), (157, 203745), (235, 136119), (255, 125443), (289, 110685), (471, 67915), (705, 45373), (785, 40749), (799, 40035), (867, 36895), (1445, 22137), (2355, 13583), (2397, 13345), (2669, 11985), (3995, 8007), (4335, 7379)]