128410256

素因数分解:

$2^4\times {\mathrm{13}}^4\times {\mathrm{281}}^1$

素因数の和:341

約数の個数: 50

約数和(自身を含む): 270486222

約数和(自身を除く): 142075966

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 281, 338, 562, 676, 1124, 1352, 2197, 2248, 2704, 3653, 4394, 4496, 7306, 8788, 14612, 17576, 28561, 29224, 35152, 47489, 57122, 58448, 94978, 114244, 189956, 228488, 379912, 456976, 617357, 759824, 1234714, 2469428, 4938856, 8025641, 9877712, 16051282, 32102564, 64205128, 128410256]

約数ペア:

[(1, 128410256), (2, 64205128), (4, 32102564), (8, 16051282), (13, 9877712), (16, 8025641), (26, 4938856), (52, 2469428), (104, 1234714), (169, 759824), (208, 617357), (281, 456976), (338, 379912), (562, 228488), (676, 189956), (1124, 114244), (1352, 94978), (2197, 58448), (2248, 57122), (2704, 47489), (3653, 35152), (4394, 29224), (4496, 28561), (7306, 17576), (8788, 14612)]