16581760

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2025

約数の個数: 64

約数和(自身を含む): 42711480

約数和(自身を除く): 26129720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 1993, 2080, 3986, 4160, 7972, 8320, 9965, 15944, 19930, 25909, 31888, 39860, 51818, 63776, 79720, 103636, 127552, 129545, 159440, 207272, 255104, 259090, 318880, 414544, 518180, 637760, 829088, 1036360, 1275520, 1658176, 2072720, 3316352, 4145440, 8290880, 16581760]

約数ペア:

[(1, 16581760), (2, 8290880), (4, 4145440), (5, 3316352), (8, 2072720), (10, 1658176), (13, 1275520), (16, 1036360), (20, 829088), (26, 637760), (32, 518180), (40, 414544), (52, 318880), (64, 259090), (65, 255104), (80, 207272), (104, 159440), (128, 129545), (130, 127552), (160, 103636), (208, 79720), (260, 63776), (320, 51818), (416, 39860), (520, 31888), (640, 25909), (832, 19930), (1040, 15944), (1664, 9965), (1993, 8320), (2080, 7972), (3986, 4160)]