30790360

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{12619}}^1$

素因数の和:12691

約数の個数: 32

約数和(自身を含む): 70419600

約数和(自身を除く): 39629240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 12619, 25238, 50476, 63095, 100952, 126190, 252380, 504760, 769759, 1539518, 3079036, 3848795, 6158072, 7697590, 15395180, 30790360]

約数ペア:

[(1, 30790360), (2, 15395180), (4, 7697590), (5, 6158072), (8, 3848795), (10, 3079036), (20, 1539518), (40, 769759), (61, 504760), (122, 252380), (244, 126190), (305, 100952), (488, 63095), (610, 50476), (1220, 25238), (2440, 12619)]