30815120

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{1123}}^1$

素因数の和:1157

約数の個数: 80

約数和(自身を含む): 83625600

約数和(自身を除く): 52810480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1123, 1372, 1715, 1960, 2246, 2744, 3430, 3920, 4492, 5488, 5615, 6860, 7861, 8984, 11230, 13720, 15722, 17968, 22460, 27440, 31444, 39305, 44920, 55027, 62888, 78610, 89840, 110054, 125776, 157220, 220108, 275135, 314440, 385189, 440216, 550270, 628880, 770378, 880432, 1100540, 1540756, 1925945, 2201080, 3081512, 3851890, 4402160, 6163024, 7703780, 15407560, 30815120]

約数ペア:

[(1, 30815120), (2, 15407560), (4, 7703780), (5, 6163024), (7, 4402160), (8, 3851890), (10, 3081512), (14, 2201080), (16, 1925945), (20, 1540756), (28, 1100540), (35, 880432), (40, 770378), (49, 628880), (56, 550270), (70, 440216), (80, 385189), (98, 314440), (112, 275135), (140, 220108), (196, 157220), (245, 125776), (280, 110054), (343, 89840), (392, 78610), (490, 62888), (560, 55027), (686, 44920), (784, 39305), (980, 31444), (1123, 27440), (1372, 22460), (1715, 17968), (1960, 15722), (2246, 13720), (2744, 11230), (3430, 8984), (3920, 7861), (4492, 6860), (5488, 5615)]