81918304

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{196919}}^1$

素因数の和:196942

約数の個数: 24

約数和(自身を含む): 173683440

約数和(自身を除く): 91765136

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 196919, 393838, 787676, 1575352, 2559947, 3150704, 5119894, 6301408, 10239788, 20479576, 40959152, 81918304]

約数ペア:

[(1, 81918304), (2, 40959152), (4, 20479576), (8, 10239788), (13, 6301408), (16, 5119894), (26, 3150704), (32, 2559947), (52, 1575352), (104, 787676), (208, 393838), (416, 196919)]