20441408

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:415

約数の個数: 56

約数和(自身を含む): 44378880

約数和(自身を除く): 23937472

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 79, 104, 158, 208, 311, 316, 416, 622, 632, 832, 1027, 1244, 1264, 2054, 2488, 2528, 4043, 4108, 4976, 5056, 8086, 8216, 9952, 16172, 16432, 19904, 24569, 32344, 32864, 49138, 64688, 65728, 98276, 129376, 196552, 258752, 319397, 393104, 638794, 786208, 1277588, 1572416, 2555176, 5110352, 10220704, 20441408]

約数ペア:

[(1, 20441408), (2, 10220704), (4, 5110352), (8, 2555176), (13, 1572416), (16, 1277588), (26, 786208), (32, 638794), (52, 393104), (64, 319397), (79, 258752), (104, 196552), (158, 129376), (208, 98276), (311, 65728), (316, 64688), (416, 49138), (622, 32864), (632, 32344), (832, 24569), (1027, 19904), (1244, 16432), (1264, 16172), (2054, 9952), (2488, 8216), (2528, 8086), (4043, 5056), (4108, 4976)]