20719200

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 144

約数和(自身を含む): 68901840

約数和(自身を除く): 48182640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 75, 80, 89, 96, 97, 100, 120, 150, 160, 178, 194, 200, 240, 267, 291, 300, 356, 388, 400, 445, 480, 485, 534, 582, 600, 712, 776, 800, 890, 970, 1068, 1164, 1200, 1335, 1424, 1455, 1552, 1780, 1940, 2136, 2225, 2328, 2400, 2425, 2670, 2848, 2910, 3104, 3560, 3880, 4272, 4450, 4656, 4850, 5340, 5820, 6675, 7120, 7275, 7760, 8544, 8633, 8900, 9312, 9700, 10680, 11640, 13350, 14240, 14550, 15520, 17266, 17800, 19400, 21360, 23280, 25899, 26700, 29100, 34532, 35600, 38800, 42720, 43165, 46560, 51798, 53400, 58200, 69064, 71200, 77600, 86330, 103596, 106800, 116400, 129495, 138128, 172660, 207192, 213600, 215825, 232800, 258990, 276256, 345320, 414384, 431650, 517980, 647475, 690640, 828768, 863300, 1035960, 1294950, 1381280, 1726600, 2071920, 2589900, 3453200, 4143840, 5179800, 6906400, 10359600, 20719200]

約数ペア:

[(1, 20719200), (2, 10359600), (3, 6906400), (4, 5179800), (5, 4143840), (6, 3453200), (8, 2589900), (10, 2071920), (12, 1726600), (15, 1381280), (16, 1294950), (20, 1035960), (24, 863300), (25, 828768), (30, 690640), (32, 647475), (40, 517980), (48, 431650), (50, 414384), (60, 345320), (75, 276256), (80, 258990), (89, 232800), (96, 215825), (97, 213600), (100, 207192), (120, 172660), (150, 138128), (160, 129495), (178, 116400), (194, 106800), (200, 103596), (240, 86330), (267, 77600), (291, 71200), (300, 69064), (356, 58200), (388, 53400), (400, 51798), (445, 46560), (480, 43165), (485, 42720), (534, 38800), (582, 35600), (600, 34532), (712, 29100), (776, 26700), (800, 25899), (890, 23280), (970, 21360), (1068, 19400), (1164, 17800), (1200, 17266), (1335, 15520), (1424, 14550), (1455, 14240), (1552, 13350), (1780, 11640), (1940, 10680), (2136, 9700), (2225, 9312), (2328, 8900), (2400, 8633), (2425, 8544), (2670, 7760), (2848, 7275), (2910, 7120), (3104, 6675), (3560, 5820), (3880, 5340), (4272, 4850), (4450, 4656)]