18421040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{173}}^1$

素因数の和:219

約数の個数: 80

約数和(自身を含む): 47380896

約数和(自身を除く): 28959856

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 173, 176, 220, 242, 346, 440, 484, 605, 692, 865, 880, 968, 1210, 1331, 1384, 1730, 1903, 1936, 2420, 2662, 2768, 3460, 3806, 4840, 5324, 6655, 6920, 7612, 9515, 9680, 10648, 13310, 13840, 15224, 19030, 20933, 21296, 26620, 30448, 38060, 41866, 53240, 76120, 83732, 104665, 106480, 152240, 167464, 209330, 230263, 334928, 418660, 460526, 837320, 921052, 1151315, 1674640, 1842104, 2302630, 3684208, 4605260, 9210520, 18421040]

約数ペア:

[(1, 18421040), (2, 9210520), (4, 4605260), (5, 3684208), (8, 2302630), (10, 1842104), (11, 1674640), (16, 1151315), (20, 921052), (22, 837320), (40, 460526), (44, 418660), (55, 334928), (80, 230263), (88, 209330), (110, 167464), (121, 152240), (173, 106480), (176, 104665), (220, 83732), (242, 76120), (346, 53240), (440, 41866), (484, 38060), (605, 30448), (692, 26620), (865, 21296), (880, 20933), (968, 19030), (1210, 15224), (1331, 13840), (1384, 13310), (1730, 10648), (1903, 9680), (1936, 9515), (2420, 7612), (2662, 6920), (2768, 6655), (3460, 5324), (3806, 4840)]