161949040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2521}}^1$

素因数の和:2618

約数の個数: 80

約数和(自身を含む): 416553696

約数和(自身を除く): 254604656

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 73, 80, 88, 110, 146, 176, 220, 292, 365, 440, 584, 730, 803, 880, 1168, 1460, 1606, 2521, 2920, 3212, 4015, 5042, 5840, 6424, 8030, 10084, 12605, 12848, 16060, 20168, 25210, 27731, 32120, 40336, 50420, 55462, 64240, 100840, 110924, 138655, 184033, 201680, 221848, 277310, 368066, 443696, 554620, 736132, 920165, 1109240, 1472264, 1840330, 2024363, 2218480, 2944528, 3680660, 4048726, 7361320, 8097452, 10121815, 14722640, 16194904, 20243630, 32389808, 40487260, 80974520, 161949040]

約数ペア:

[(1, 161949040), (2, 80974520), (4, 40487260), (5, 32389808), (8, 20243630), (10, 16194904), (11, 14722640), (16, 10121815), (20, 8097452), (22, 7361320), (40, 4048726), (44, 3680660), (55, 2944528), (73, 2218480), (80, 2024363), (88, 1840330), (110, 1472264), (146, 1109240), (176, 920165), (220, 736132), (292, 554620), (365, 443696), (440, 368066), (584, 277310), (730, 221848), (803, 201680), (880, 184033), (1168, 138655), (1460, 110924), (1606, 100840), (2521, 64240), (2920, 55462), (3212, 50420), (4015, 40336), (5042, 32120), (5840, 27731), (6424, 25210), (8030, 20168), (10084, 16060), (12605, 12848)]