20377140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:294

約数の個数: 144

約数和(自身を含む): 68947200

約数和(自身を除く): 48570060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 49, 58, 60, 70, 84, 87, 98, 105, 116, 140, 145, 147, 174, 196, 203, 210, 239, 245, 290, 294, 348, 406, 420, 435, 478, 490, 580, 588, 609, 717, 735, 812, 870, 956, 980, 1015, 1195, 1218, 1421, 1434, 1470, 1673, 1740, 2030, 2390, 2436, 2842, 2868, 2940, 3045, 3346, 3585, 4060, 4263, 4780, 5019, 5684, 6090, 6692, 6931, 7105, 7170, 8365, 8526, 10038, 11711, 12180, 13862, 14210, 14340, 16730, 17052, 20076, 20793, 21315, 23422, 25095, 27724, 28420, 33460, 34655, 35133, 41586, 42630, 46844, 48517, 50190, 58555, 69310, 70266, 83172, 85260, 97034, 100380, 103965, 117110, 138620, 140532, 145551, 175665, 194068, 207930, 234220, 242585, 291102, 339619, 351330, 415860, 485170, 582204, 679238, 702660, 727755, 970340, 1018857, 1358476, 1455510, 1698095, 2037714, 2911020, 3396190, 4075428, 5094285, 6792380, 10188570, 20377140]

約数ペア:

[(1, 20377140), (2, 10188570), (3, 6792380), (4, 5094285), (5, 4075428), (6, 3396190), (7, 2911020), (10, 2037714), (12, 1698095), (14, 1455510), (15, 1358476), (20, 1018857), (21, 970340), (28, 727755), (29, 702660), (30, 679238), (35, 582204), (42, 485170), (49, 415860), (58, 351330), (60, 339619), (70, 291102), (84, 242585), (87, 234220), (98, 207930), (105, 194068), (116, 175665), (140, 145551), (145, 140532), (147, 138620), (174, 117110), (196, 103965), (203, 100380), (210, 97034), (239, 85260), (245, 83172), (290, 70266), (294, 69310), (348, 58555), (406, 50190), (420, 48517), (435, 46844), (478, 42630), (490, 41586), (580, 35133), (588, 34655), (609, 33460), (717, 28420), (735, 27724), (812, 25095), (870, 23422), (956, 21315), (980, 20793), (1015, 20076), (1195, 17052), (1218, 16730), (1421, 14340), (1434, 14210), (1470, 13862), (1673, 12180), (1740, 11711), (2030, 10038), (2390, 8526), (2436, 8365), (2842, 7170), (2868, 7105), (2940, 6931), (3045, 6692), (3346, 6090), (3585, 5684), (4060, 5019), (4263, 4780)]