81319756

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{379}}^1$

素因数の和:566

約数の個数: 48

約数和(自身を含む): 166835200

約数和(自身を除く): 85515444

約数列:

[1, 2, 4, 7, 14, 28, 79, 97, 158, 194, 316, 379, 388, 553, 679, 758, 1106, 1358, 1516, 2212, 2653, 2716, 5306, 7663, 10612, 15326, 29941, 30652, 36763, 53641, 59882, 73526, 107282, 119764, 147052, 209587, 214564, 257341, 419174, 514682, 838348, 1029364, 2904277, 5808554, 11617108, 20329939, 40659878, 81319756]

約数ペア:

[(1, 81319756), (2, 40659878), (4, 20329939), (7, 11617108), (14, 5808554), (28, 2904277), (79, 1029364), (97, 838348), (158, 514682), (194, 419174), (316, 257341), (379, 214564), (388, 209587), (553, 147052), (679, 119764), (758, 107282), (1106, 73526), (1358, 59882), (1516, 53641), (2212, 36763), (2653, 30652), (2716, 29941), (5306, 15326), (7663, 10612)]