20438400

素因数分解:

$2^7\times 3^1\times 5^2\times {\mathrm{2129}}^1$

素因数の和:2156

約数の個数: 96

約数和(自身を含む): 67350600

約数和(自身を除く): 46912200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 128, 150, 160, 192, 200, 240, 300, 320, 384, 400, 480, 600, 640, 800, 960, 1200, 1600, 1920, 2129, 2400, 3200, 4258, 4800, 6387, 8516, 9600, 10645, 12774, 17032, 21290, 25548, 31935, 34064, 42580, 51096, 53225, 63870, 68128, 85160, 102192, 106450, 127740, 136256, 159675, 170320, 204384, 212900, 255480, 272512, 319350, 340640, 408768, 425800, 510960, 638700, 681280, 817536, 851600, 1021920, 1277400, 1362560, 1703200, 2043840, 2554800, 3406400, 4087680, 5109600, 6812800, 10219200, 20438400]

約数ペア:

[(1, 20438400), (2, 10219200), (3, 6812800), (4, 5109600), (5, 4087680), (6, 3406400), (8, 2554800), (10, 2043840), (12, 1703200), (15, 1362560), (16, 1277400), (20, 1021920), (24, 851600), (25, 817536), (30, 681280), (32, 638700), (40, 510960), (48, 425800), (50, 408768), (60, 340640), (64, 319350), (75, 272512), (80, 255480), (96, 212900), (100, 204384), (120, 170320), (128, 159675), (150, 136256), (160, 127740), (192, 106450), (200, 102192), (240, 85160), (300, 68128), (320, 63870), (384, 53225), (400, 51096), (480, 42580), (600, 34064), (640, 31935), (800, 25548), (960, 21290), (1200, 17032), (1600, 12774), (1920, 10645), (2129, 9600), (2400, 8516), (3200, 6387), (4258, 4800)]