161796220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{3929}}^1$

素因数の和:4038

約数の個数: 48

約数和(自身を含む): 356529600

約数和(自身を除く): 194733380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 710, 1420, 2059, 3929, 4118, 7858, 8236, 10295, 15716, 19645, 20590, 39290, 41180, 78580, 113941, 227882, 278959, 455764, 557918, 569705, 1115836, 1139410, 1394795, 2278820, 2789590, 5579180, 8089811, 16179622, 32359244, 40449055, 80898110, 161796220]

約数ペア:

[(1, 161796220), (2, 80898110), (4, 40449055), (5, 32359244), (10, 16179622), (20, 8089811), (29, 5579180), (58, 2789590), (71, 2278820), (116, 1394795), (142, 1139410), (145, 1115836), (284, 569705), (290, 557918), (355, 455764), (580, 278959), (710, 227882), (1420, 113941), (2059, 78580), (3929, 41180), (4118, 39290), (7858, 20590), (8236, 19645), (10295, 15716)]