257746560

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{134243}}^1$

素因数の和:134265

約数の個数: 64

約数和(自身を含む): 821573280

約数和(自身を除く): 563826720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 134243, 268486, 402729, 536972, 671215, 805458, 1073944, 1342430, 1610916, 2013645, 2147888, 2684860, 3221832, 4027290, 4295776, 5369720, 6443664, 8054580, 8591552, 10739440, 12887328, 16109160, 17183104, 21478880, 25774656, 32218320, 42957760, 51549312, 64436640, 85915520, 128873280, 257746560]

約数ペア:

[(1, 257746560), (2, 128873280), (3, 85915520), (4, 64436640), (5, 51549312), (6, 42957760), (8, 32218320), (10, 25774656), (12, 21478880), (15, 17183104), (16, 16109160), (20, 12887328), (24, 10739440), (30, 8591552), (32, 8054580), (40, 6443664), (48, 5369720), (60, 4295776), (64, 4027290), (80, 3221832), (96, 2684860), (120, 2147888), (128, 2013645), (160, 1610916), (192, 1342430), (240, 1073944), (320, 805458), (384, 671215), (480, 536972), (640, 402729), (960, 268486), (1920, 134243)]