221880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^2$

素因数の和:100

約数の個数: 48

約数和(自身を含む): 681480

約数和(自身を除く): 459600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 1849, 2580, 3698, 5160, 5547, 7396, 9245, 11094, 14792, 18490, 22188, 27735, 36980, 44376, 55470, 73960, 110940, 221880]

約数ペア:

[(1, 221880), (2, 110940), (3, 73960), (4, 55470), (5, 44376), (6, 36980), (8, 27735), (10, 22188), (12, 18490), (15, 14792), (20, 11094), (24, 9245), (30, 7396), (40, 5547), (43, 5160), (60, 3698), (86, 2580), (120, 1849), (129, 1720), (172, 1290), (215, 1032), (258, 860), (344, 645), (430, 516)]