81037600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:555

約数の個数: 144

約数和(自身を含む): 234360000

約数和(自身を除く): 153322400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 29, 32, 35, 40, 50, 56, 58, 70, 80, 100, 112, 116, 140, 145, 160, 175, 200, 203, 224, 232, 280, 290, 350, 400, 406, 464, 499, 560, 580, 700, 725, 800, 812, 928, 998, 1015, 1120, 1160, 1400, 1450, 1624, 1996, 2030, 2320, 2495, 2800, 2900, 3248, 3493, 3992, 4060, 4640, 4990, 5075, 5600, 5800, 6496, 6986, 7984, 8120, 9980, 10150, 11600, 12475, 13972, 14471, 15968, 16240, 17465, 19960, 20300, 23200, 24950, 27944, 28942, 32480, 34930, 39920, 40600, 49900, 55888, 57884, 69860, 72355, 79840, 81200, 87325, 99800, 101297, 111776, 115768, 139720, 144710, 162400, 174650, 199600, 202594, 231536, 279440, 289420, 349300, 361775, 399200, 405188, 463072, 506485, 558880, 578840, 698600, 723550, 810376, 1012970, 1157680, 1397200, 1447100, 1620752, 2025940, 2315360, 2532425, 2794400, 2894200, 3241504, 4051880, 5064850, 5788400, 8103760, 10129700, 11576800, 16207520, 20259400, 40518800, 81037600]

約数ペア:

[(1, 81037600), (2, 40518800), (4, 20259400), (5, 16207520), (7, 11576800), (8, 10129700), (10, 8103760), (14, 5788400), (16, 5064850), (20, 4051880), (25, 3241504), (28, 2894200), (29, 2794400), (32, 2532425), (35, 2315360), (40, 2025940), (50, 1620752), (56, 1447100), (58, 1397200), (70, 1157680), (80, 1012970), (100, 810376), (112, 723550), (116, 698600), (140, 578840), (145, 558880), (160, 506485), (175, 463072), (200, 405188), (203, 399200), (224, 361775), (232, 349300), (280, 289420), (290, 279440), (350, 231536), (400, 202594), (406, 199600), (464, 174650), (499, 162400), (560, 144710), (580, 139720), (700, 115768), (725, 111776), (800, 101297), (812, 99800), (928, 87325), (998, 81200), (1015, 79840), (1120, 72355), (1160, 69860), (1400, 57884), (1450, 55888), (1624, 49900), (1996, 40600), (2030, 39920), (2320, 34930), (2495, 32480), (2800, 28942), (2900, 27944), (3248, 24950), (3493, 23200), (3992, 20300), (4060, 19960), (4640, 17465), (4990, 16240), (5075, 15968), (5600, 14471), (5800, 13972), (6496, 12475), (6986, 11600), (7984, 10150), (8120, 9980)]