18505480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:143

約数の個数: 128

約数和(自身を含む): 51321600

約数和(自身を除く): 32816120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 43, 53, 56, 58, 70, 86, 106, 116, 140, 145, 172, 203, 212, 215, 232, 265, 280, 290, 301, 344, 371, 406, 424, 430, 530, 580, 602, 742, 812, 860, 1015, 1060, 1160, 1204, 1247, 1484, 1505, 1537, 1624, 1720, 1855, 2030, 2120, 2279, 2408, 2494, 2968, 3010, 3074, 3710, 4060, 4558, 4988, 6020, 6148, 6235, 7420, 7685, 8120, 8729, 9116, 9976, 10759, 11395, 12040, 12296, 12470, 14840, 15370, 15953, 17458, 18232, 21518, 22790, 24940, 30740, 31906, 34916, 43036, 43645, 45580, 49880, 53795, 61480, 63812, 66091, 69832, 79765, 86072, 87290, 91160, 107590, 127624, 132182, 159530, 174580, 215180, 264364, 319060, 330455, 349160, 430360, 462637, 528728, 638120, 660910, 925274, 1321820, 1850548, 2313185, 2643640, 3701096, 4626370, 9252740, 18505480]

約数ペア:

[(1, 18505480), (2, 9252740), (4, 4626370), (5, 3701096), (7, 2643640), (8, 2313185), (10, 1850548), (14, 1321820), (20, 925274), (28, 660910), (29, 638120), (35, 528728), (40, 462637), (43, 430360), (53, 349160), (56, 330455), (58, 319060), (70, 264364), (86, 215180), (106, 174580), (116, 159530), (140, 132182), (145, 127624), (172, 107590), (203, 91160), (212, 87290), (215, 86072), (232, 79765), (265, 69832), (280, 66091), (290, 63812), (301, 61480), (344, 53795), (371, 49880), (406, 45580), (424, 43645), (430, 43036), (530, 34916), (580, 31906), (602, 30740), (742, 24940), (812, 22790), (860, 21518), (1015, 18232), (1060, 17458), (1160, 15953), (1204, 15370), (1247, 14840), (1484, 12470), (1505, 12296), (1537, 12040), (1624, 11395), (1720, 10759), (1855, 9976), (2030, 9116), (2120, 8729), (2279, 8120), (2408, 7685), (2494, 7420), (2968, 6235), (3010, 6148), (3074, 6020), (3710, 4988), (4060, 4558)]