20920800

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:425

約数の個数: 144

約数和(自身を含む): 71245440

約数和(自身を除く): 50324640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 25, 30, 32, 40, 46, 48, 50, 60, 69, 75, 80, 92, 96, 100, 115, 120, 138, 150, 160, 184, 200, 230, 240, 276, 300, 345, 368, 379, 400, 460, 480, 552, 575, 600, 690, 736, 758, 800, 920, 1104, 1137, 1150, 1200, 1380, 1516, 1725, 1840, 1895, 2208, 2274, 2300, 2400, 2760, 3032, 3450, 3680, 3790, 4548, 4600, 5520, 5685, 6064, 6900, 7580, 8717, 9096, 9200, 9475, 11040, 11370, 12128, 13800, 15160, 17434, 18192, 18400, 18950, 22740, 26151, 27600, 28425, 30320, 34868, 36384, 37900, 43585, 45480, 52302, 55200, 56850, 60640, 69736, 75800, 87170, 90960, 104604, 113700, 130755, 139472, 151600, 174340, 181920, 209208, 217925, 227400, 261510, 278944, 303200, 348680, 418416, 435850, 454800, 523020, 653775, 697360, 836832, 871700, 909600, 1046040, 1307550, 1394720, 1743400, 2092080, 2615100, 3486800, 4184160, 5230200, 6973600, 10460400, 20920800]

約数ペア:

[(1, 20920800), (2, 10460400), (3, 6973600), (4, 5230200), (5, 4184160), (6, 3486800), (8, 2615100), (10, 2092080), (12, 1743400), (15, 1394720), (16, 1307550), (20, 1046040), (23, 909600), (24, 871700), (25, 836832), (30, 697360), (32, 653775), (40, 523020), (46, 454800), (48, 435850), (50, 418416), (60, 348680), (69, 303200), (75, 278944), (80, 261510), (92, 227400), (96, 217925), (100, 209208), (115, 181920), (120, 174340), (138, 151600), (150, 139472), (160, 130755), (184, 113700), (200, 104604), (230, 90960), (240, 87170), (276, 75800), (300, 69736), (345, 60640), (368, 56850), (379, 55200), (400, 52302), (460, 45480), (480, 43585), (552, 37900), (575, 36384), (600, 34868), (690, 30320), (736, 28425), (758, 27600), (800, 26151), (920, 22740), (1104, 18950), (1137, 18400), (1150, 18192), (1200, 17434), (1380, 15160), (1516, 13800), (1725, 12128), (1840, 11370), (1895, 11040), (2208, 9475), (2274, 9200), (2300, 9096), (2400, 8717), (2760, 7580), (3032, 6900), (3450, 6064), (3680, 5685), (3790, 5520), (4548, 4600)]