125630720

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1609}}^1$

素因数の和:1691

約数の個数: 72

約数和(自身を含む): 306048120

約数和(自身を除く): 180417400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 610, 640, 976, 1220, 1280, 1609, 1952, 2440, 3218, 3904, 4880, 6436, 7808, 8045, 9760, 12872, 15616, 16090, 19520, 25744, 32180, 39040, 51488, 64360, 78080, 98149, 102976, 128720, 196298, 205952, 257440, 392596, 411904, 490745, 514880, 785192, 981490, 1029760, 1570384, 1962980, 2059520, 3140768, 3925960, 6281536, 7851920, 12563072, 15703840, 25126144, 31407680, 62815360, 125630720]

約数ペア:

[(1, 125630720), (2, 62815360), (4, 31407680), (5, 25126144), (8, 15703840), (10, 12563072), (16, 7851920), (20, 6281536), (32, 3925960), (40, 3140768), (61, 2059520), (64, 1962980), (80, 1570384), (122, 1029760), (128, 981490), (160, 785192), (244, 514880), (256, 490745), (305, 411904), (320, 392596), (488, 257440), (610, 205952), (640, 196298), (976, 128720), (1220, 102976), (1280, 98149), (1609, 78080), (1952, 64360), (2440, 51488), (3218, 39040), (3904, 32180), (4880, 25744), (6436, 19520), (7808, 16090), (8045, 15616), (9760, 12872)]