80302880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{71699}}^1$

素因数の和:71721

約数の個数: 48

約数和(自身を含む): 216820800

約数和(自身を除く): 136517920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 71699, 143398, 286796, 358495, 501893, 573592, 716990, 1003786, 1147184, 1433980, 2007572, 2294368, 2509465, 2867960, 4015144, 5018930, 5735920, 8030288, 10037860, 11471840, 16060576, 20075720, 40151440, 80302880]

約数ペア:

[(1, 80302880), (2, 40151440), (4, 20075720), (5, 16060576), (7, 11471840), (8, 10037860), (10, 8030288), (14, 5735920), (16, 5018930), (20, 4015144), (28, 2867960), (32, 2509465), (35, 2294368), (40, 2007572), (56, 1433980), (70, 1147184), (80, 1003786), (112, 716990), (140, 573592), (160, 501893), (224, 358495), (280, 286796), (560, 143398), (1120, 71699)]