19843120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22549}}^1$

素因数の和:22573

約数の個数: 40

約数和(自身を含む): 50331600

約数和(自身を除く): 30488480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22549, 45098, 90196, 112745, 180392, 225490, 248039, 360784, 450980, 496078, 901960, 992156, 1240195, 1803920, 1984312, 2480390, 3968624, 4960780, 9921560, 19843120]

約数ペア:

[(1, 19843120), (2, 9921560), (4, 4960780), (5, 3968624), (8, 2480390), (10, 1984312), (11, 1803920), (16, 1240195), (20, 992156), (22, 901960), (40, 496078), (44, 450980), (55, 360784), (80, 248039), (88, 225490), (110, 180392), (176, 112745), (220, 90196), (440, 45098), (880, 22549)]