81379800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1559}}^1$

素因数の和:1610

約数の個数: 144

約数和(自身を含む): 282906000

約数和(自身を除く): 201526200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 29, 30, 36, 40, 45, 50, 58, 60, 72, 75, 87, 90, 100, 116, 120, 145, 150, 174, 180, 200, 225, 232, 261, 290, 300, 348, 360, 435, 450, 522, 580, 600, 696, 725, 870, 900, 1044, 1160, 1305, 1450, 1559, 1740, 1800, 2088, 2175, 2610, 2900, 3118, 3480, 4350, 4677, 5220, 5800, 6236, 6525, 7795, 8700, 9354, 10440, 12472, 13050, 14031, 15590, 17400, 18708, 23385, 26100, 28062, 31180, 37416, 38975, 45211, 46770, 52200, 56124, 62360, 70155, 77950, 90422, 93540, 112248, 116925, 135633, 140310, 155900, 180844, 187080, 226055, 233850, 271266, 280620, 311800, 350775, 361688, 406899, 452110, 467700, 542532, 561240, 678165, 701550, 813798, 904220, 935400, 1085064, 1130275, 1356330, 1403100, 1627596, 1808440, 2034495, 2260550, 2712660, 2806200, 3255192, 3390825, 4068990, 4521100, 5425320, 6781650, 8137980, 9042200, 10172475, 13563300, 16275960, 20344950, 27126600, 40689900, 81379800]

約数ペア:

[(1, 81379800), (2, 40689900), (3, 27126600), (4, 20344950), (5, 16275960), (6, 13563300), (8, 10172475), (9, 9042200), (10, 8137980), (12, 6781650), (15, 5425320), (18, 4521100), (20, 4068990), (24, 3390825), (25, 3255192), (29, 2806200), (30, 2712660), (36, 2260550), (40, 2034495), (45, 1808440), (50, 1627596), (58, 1403100), (60, 1356330), (72, 1130275), (75, 1085064), (87, 935400), (90, 904220), (100, 813798), (116, 701550), (120, 678165), (145, 561240), (150, 542532), (174, 467700), (180, 452110), (200, 406899), (225, 361688), (232, 350775), (261, 311800), (290, 280620), (300, 271266), (348, 233850), (360, 226055), (435, 187080), (450, 180844), (522, 155900), (580, 140310), (600, 135633), (696, 116925), (725, 112248), (870, 93540), (900, 90422), (1044, 77950), (1160, 70155), (1305, 62360), (1450, 56124), (1559, 52200), (1740, 46770), (1800, 45211), (2088, 38975), (2175, 37416), (2610, 31180), (2900, 28062), (3118, 26100), (3480, 23385), (4350, 18708), (4677, 17400), (5220, 15590), (5800, 14031), (6236, 13050), (6525, 12472), (7795, 10440), (8700, 9354)]