19857870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12979}}^1$

素因数の和:13009

約数の個数: 48

約数和(自身を含む): 54671760

約数和(自身を除く): 34813890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 306, 510, 765, 1530, 12979, 25958, 38937, 64895, 77874, 116811, 129790, 194685, 220643, 233622, 389370, 441286, 584055, 661929, 1103215, 1168110, 1323858, 1985787, 2206430, 3309645, 3971574, 6619290, 9928935, 19857870]

約数ペア:

[(1, 19857870), (2, 9928935), (3, 6619290), (5, 3971574), (6, 3309645), (9, 2206430), (10, 1985787), (15, 1323858), (17, 1168110), (18, 1103215), (30, 661929), (34, 584055), (45, 441286), (51, 389370), (85, 233622), (90, 220643), (102, 194685), (153, 129790), (170, 116811), (255, 77874), (306, 64895), (510, 38937), (765, 25958), (1530, 12979)]