643688864

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{221047}}^1$

素因数の和:221077

約数の個数: 48

約数和(自身を含む): 1559714688

約数和(自身を除く): 916025824

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 221047, 442094, 884188, 1547329, 1768376, 2873611, 3094658, 3536752, 5747222, 6189316, 7073504, 11494444, 12378632, 20115277, 22988888, 24757264, 40230554, 45977776, 49514528, 80461108, 91955552, 160922216, 321844432, 643688864]

約数ペア:

[(1, 643688864), (2, 321844432), (4, 160922216), (7, 91955552), (8, 80461108), (13, 49514528), (14, 45977776), (16, 40230554), (26, 24757264), (28, 22988888), (32, 20115277), (52, 12378632), (56, 11494444), (91, 7073504), (104, 6189316), (112, 5747222), (182, 3536752), (208, 3094658), (224, 2873611), (364, 1768376), (416, 1547329), (728, 884188), (1456, 442094), (2912, 221047)]