31407680

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1609}}^1$

素因数の和:1687

約数の個数: 56

約数和(自身を含む): 76062840

約数和(自身を除く): 44655160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 1220, 1609, 1952, 2440, 3218, 3904, 4880, 6436, 8045, 9760, 12872, 16090, 19520, 25744, 32180, 51488, 64360, 98149, 102976, 128720, 196298, 257440, 392596, 490745, 514880, 785192, 981490, 1570384, 1962980, 3140768, 3925960, 6281536, 7851920, 15703840, 31407680]

約数ペア:

[(1, 31407680), (2, 15703840), (4, 7851920), (5, 6281536), (8, 3925960), (10, 3140768), (16, 1962980), (20, 1570384), (32, 981490), (40, 785192), (61, 514880), (64, 490745), (80, 392596), (122, 257440), (160, 196298), (244, 128720), (305, 102976), (320, 98149), (488, 64360), (610, 51488), (976, 32180), (1220, 25744), (1609, 19520), (1952, 16090), (2440, 12872), (3218, 9760), (3904, 8045), (4880, 6436)]