643538070

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1999}}^1$

素因数の和:2099

約数の個数: 144

約数和(自身を含む): 1974024000

約数和(自身を除く): 1330485930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 73, 90, 98, 105, 126, 146, 147, 210, 219, 245, 294, 315, 365, 438, 441, 490, 511, 630, 657, 730, 735, 882, 1022, 1095, 1314, 1470, 1533, 1999, 2190, 2205, 2555, 3066, 3285, 3577, 3998, 4410, 4599, 5110, 5997, 6570, 7154, 7665, 9198, 9995, 10731, 11994, 13993, 15330, 17885, 17991, 19990, 21462, 22995, 27986, 29985, 32193, 35770, 35982, 41979, 45990, 53655, 59970, 64386, 69965, 83958, 89955, 97951, 107310, 125937, 139930, 145927, 160965, 179910, 195902, 209895, 251874, 291854, 293853, 321930, 419790, 437781, 489755, 587706, 629685, 729635, 875562, 881559, 979510, 1021489, 1259370, 1313343, 1459270, 1469265, 1763118, 2042978, 2188905, 2626686, 2938530, 3064467, 4377810, 4407795, 5107445, 6128934, 6566715, 7150423, 8815590, 9193401, 10214890, 13133430, 14300846, 15322335, 18386802, 21451269, 30644670, 35752115, 42902538, 45967005, 64353807, 71504230, 91934010, 107256345, 128707614, 214512690, 321769035, 643538070]

約数ペア:

[(1, 643538070), (2, 321769035), (3, 214512690), (5, 128707614), (6, 107256345), (7, 91934010), (9, 71504230), (10, 64353807), (14, 45967005), (15, 42902538), (18, 35752115), (21, 30644670), (30, 21451269), (35, 18386802), (42, 15322335), (45, 14300846), (49, 13133430), (63, 10214890), (70, 9193401), (73, 8815590), (90, 7150423), (98, 6566715), (105, 6128934), (126, 5107445), (146, 4407795), (147, 4377810), (210, 3064467), (219, 2938530), (245, 2626686), (294, 2188905), (315, 2042978), (365, 1763118), (438, 1469265), (441, 1459270), (490, 1313343), (511, 1259370), (630, 1021489), (657, 979510), (730, 881559), (735, 875562), (882, 729635), (1022, 629685), (1095, 587706), (1314, 489755), (1470, 437781), (1533, 419790), (1999, 321930), (2190, 293853), (2205, 291854), (2555, 251874), (3066, 209895), (3285, 195902), (3577, 179910), (3998, 160965), (4410, 145927), (4599, 139930), (5110, 125937), (5997, 107310), (6570, 97951), (7154, 89955), (7665, 83958), (9198, 69965), (9995, 64386), (10731, 59970), (11994, 53655), (13993, 45990), (15330, 41979), (17885, 35982), (17991, 35770), (19990, 32193), (21462, 29985), (22995, 27986)]