20498816

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 44782080

約数和(自身を除く): 24283264

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 97, 104, 127, 128, 194, 208, 254, 388, 416, 508, 776, 832, 1016, 1261, 1552, 1651, 1664, 2032, 2522, 3104, 3302, 4064, 5044, 6208, 6604, 8128, 10088, 12319, 12416, 13208, 16256, 20176, 24638, 26416, 40352, 49276, 52832, 80704, 98552, 105664, 160147, 161408, 197104, 211328, 320294, 394208, 640588, 788416, 1281176, 1576832, 2562352, 5124704, 10249408, 20498816]

約数ペア:

[(1, 20498816), (2, 10249408), (4, 5124704), (8, 2562352), (13, 1576832), (16, 1281176), (26, 788416), (32, 640588), (52, 394208), (64, 320294), (97, 211328), (104, 197104), (127, 161408), (128, 160147), (194, 105664), (208, 98552), (254, 80704), (388, 52832), (416, 49276), (508, 40352), (776, 26416), (832, 24638), (1016, 20176), (1261, 16256), (1552, 13208), (1651, 12416), (1664, 12319), (2032, 10088), (2522, 8128), (3104, 6604), (3302, 6208), (4064, 5044)]