128328256

素因数分解:

$2^6\times 7^2\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:448

約数の個数: 84

約数和(自身を含む): 299289216

約数和(自身を除く): 170960960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 151, 196, 224, 271, 302, 392, 448, 542, 604, 784, 1057, 1084, 1208, 1568, 1897, 2114, 2168, 2416, 3136, 3794, 4228, 4336, 4832, 7399, 7588, 8456, 8672, 9664, 13279, 14798, 15176, 16912, 17344, 26558, 29596, 30352, 33824, 40921, 53116, 59192, 60704, 67648, 81842, 106232, 118384, 121408, 163684, 212464, 236768, 286447, 327368, 424928, 473536, 572894, 654736, 849856, 1145788, 1309472, 2005129, 2291576, 2618944, 4010258, 4583152, 8020516, 9166304, 16041032, 18332608, 32082064, 64164128, 128328256]

約数ペア:

[(1, 128328256), (2, 64164128), (4, 32082064), (7, 18332608), (8, 16041032), (14, 9166304), (16, 8020516), (28, 4583152), (32, 4010258), (49, 2618944), (56, 2291576), (64, 2005129), (98, 1309472), (112, 1145788), (151, 849856), (196, 654736), (224, 572894), (271, 473536), (302, 424928), (392, 327368), (448, 286447), (542, 236768), (604, 212464), (784, 163684), (1057, 121408), (1084, 118384), (1208, 106232), (1568, 81842), (1897, 67648), (2114, 60704), (2168, 59192), (2416, 53116), (3136, 40921), (3794, 33824), (4228, 30352), (4336, 29596), (4832, 26558), (7399, 17344), (7588, 16912), (8456, 15176), (8672, 14798), (9664, 13279)]