18228840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{21701}}^1$

素因数の和:21722

約数の個数: 64

約数和(自身を含む): 62501760

約数和(自身を除く): 44272920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 21701, 43402, 65103, 86804, 108505, 130206, 151907, 173608, 217010, 260412, 303814, 325515, 434020, 455721, 520824, 607628, 651030, 759535, 868040, 911442, 1215256, 1302060, 1519070, 1822884, 2278605, 2604120, 3038140, 3645768, 4557210, 6076280, 9114420, 18228840]

約数ペア:

[(1, 18228840), (2, 9114420), (3, 6076280), (4, 4557210), (5, 3645768), (6, 3038140), (7, 2604120), (8, 2278605), (10, 1822884), (12, 1519070), (14, 1302060), (15, 1215256), (20, 911442), (21, 868040), (24, 759535), (28, 651030), (30, 607628), (35, 520824), (40, 455721), (42, 434020), (56, 325515), (60, 303814), (70, 260412), (84, 217010), (105, 173608), (120, 151907), (140, 130206), (168, 108505), (210, 86804), (280, 65103), (420, 43402), (840, 21701)]