19947480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23747}}^1$

素因数の和:23768

約数の個数: 64

約数和(自身を含む): 68394240

約数和(自身を除く): 48446760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23747, 47494, 71241, 94988, 118735, 142482, 166229, 189976, 237470, 284964, 332458, 356205, 474940, 498687, 569928, 664916, 712410, 831145, 949880, 997374, 1329832, 1424820, 1662290, 1994748, 2493435, 2849640, 3324580, 3989496, 4986870, 6649160, 9973740, 19947480]

約数ペア:

[(1, 19947480), (2, 9973740), (3, 6649160), (4, 4986870), (5, 3989496), (6, 3324580), (7, 2849640), (8, 2493435), (10, 1994748), (12, 1662290), (14, 1424820), (15, 1329832), (20, 997374), (21, 949880), (24, 831145), (28, 712410), (30, 664916), (35, 569928), (40, 498687), (42, 474940), (56, 356205), (60, 332458), (70, 284964), (84, 237470), (105, 189976), (120, 166229), (140, 142482), (168, 118735), (210, 94988), (280, 71241), (420, 47494), (840, 23747)]