72012800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:156

約数の個数: 132

約数和(自身を含む): 186563580

約数和(自身を除く): 114550780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 64, 80, 97, 100, 116, 128, 145, 160, 194, 200, 232, 256, 290, 320, 388, 400, 464, 485, 512, 580, 640, 725, 776, 800, 928, 970, 1024, 1160, 1280, 1450, 1552, 1600, 1856, 1940, 2320, 2425, 2560, 2813, 2900, 3104, 3200, 3712, 3880, 4640, 4850, 5120, 5626, 5800, 6208, 6400, 7424, 7760, 9280, 9700, 11252, 11600, 12416, 12800, 14065, 14848, 15520, 18560, 19400, 22504, 23200, 24832, 25600, 28130, 29696, 31040, 37120, 38800, 45008, 46400, 49664, 56260, 62080, 70325, 74240, 77600, 90016, 92800, 99328, 112520, 124160, 140650, 148480, 155200, 180032, 185600, 225040, 248320, 281300, 310400, 360064, 371200, 450080, 496640, 562600, 620800, 720128, 742400, 900160, 1125200, 1241600, 1440256, 1800320, 2250400, 2483200, 2880512, 3600640, 4500800, 7201280, 9001600, 14402560, 18003200, 36006400, 72012800]

約数ペア:

[(1, 72012800), (2, 36006400), (4, 18003200), (5, 14402560), (8, 9001600), (10, 7201280), (16, 4500800), (20, 3600640), (25, 2880512), (29, 2483200), (32, 2250400), (40, 1800320), (50, 1440256), (58, 1241600), (64, 1125200), (80, 900160), (97, 742400), (100, 720128), (116, 620800), (128, 562600), (145, 496640), (160, 450080), (194, 371200), (200, 360064), (232, 310400), (256, 281300), (290, 248320), (320, 225040), (388, 185600), (400, 180032), (464, 155200), (485, 148480), (512, 140650), (580, 124160), (640, 112520), (725, 99328), (776, 92800), (800, 90016), (928, 77600), (970, 74240), (1024, 70325), (1160, 62080), (1280, 56260), (1450, 49664), (1552, 46400), (1600, 45008), (1856, 38800), (1940, 37120), (2320, 31040), (2425, 29696), (2560, 28130), (2813, 25600), (2900, 24832), (3104, 23200), (3200, 22504), (3712, 19400), (3880, 18560), (4640, 15520), (4850, 14848), (5120, 14065), (5626, 12800), (5800, 12416), (6208, 11600), (6400, 11252), (7424, 9700), (7760, 9280)]