161333560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{212281}}^1$

素因数の和:212311

約数の個数: 32

約数和(自身を含む): 382107600

約数和(自身を除く): 220774040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 212281, 424562, 849124, 1061405, 1698248, 2122810, 4033339, 4245620, 8066678, 8491240, 16133356, 20166695, 32266712, 40333390, 80666780, 161333560]

約数ペア:

[(1, 161333560), (2, 80666780), (4, 40333390), (5, 32266712), (8, 20166695), (10, 16133356), (19, 8491240), (20, 8066678), (38, 4245620), (40, 4033339), (76, 2122810), (95, 1698248), (152, 1061405), (190, 849124), (380, 424562), (760, 212281)]