4145440

素因数分解:

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

素因数の和:2021

約数の個数: 48

約数和(自身を含む): 10552248

約数和(自身を除く): 6406808

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 1993, 2080, 3986, 7972, 9965, 15944, 19930, 25909, 31888, 39860, 51818, 63776, 79720, 103636, 129545, 159440, 207272, 259090, 318880, 414544, 518180, 829088, 1036360, 2072720, 4145440]

約数ペア:

[(1, 4145440), (2, 2072720), (4, 1036360), (5, 829088), (8, 518180), (10, 414544), (13, 318880), (16, 259090), (20, 207272), (26, 159440), (32, 129545), (40, 103636), (52, 79720), (65, 63776), (80, 51818), (104, 39860), (130, 31888), (160, 25909), (208, 19930), (260, 15944), (416, 9965), (520, 7972), (1040, 3986), (1993, 2080)]