21800800

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1$

素因数の和:273

約数の個数: 144

約数和(自身を含む): 64683360

約数和(自身を除く): 42882560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 32, 34, 35, 40, 50, 56, 68, 70, 80, 85, 100, 112, 119, 136, 140, 160, 170, 175, 200, 224, 229, 238, 272, 280, 340, 350, 400, 425, 458, 476, 544, 560, 595, 680, 700, 800, 850, 916, 952, 1120, 1145, 1190, 1360, 1400, 1603, 1700, 1832, 1904, 2290, 2380, 2720, 2800, 2975, 3206, 3400, 3664, 3808, 3893, 4580, 4760, 5600, 5725, 5950, 6412, 6800, 7328, 7786, 8015, 9160, 9520, 11450, 11900, 12824, 13600, 15572, 16030, 18320, 19040, 19465, 22900, 23800, 25648, 27251, 31144, 32060, 36640, 38930, 40075, 45800, 47600, 51296, 54502, 62288, 64120, 77860, 80150, 91600, 95200, 97325, 109004, 124576, 128240, 136255, 155720, 160300, 183200, 194650, 218008, 256480, 272510, 311440, 320600, 389300, 436016, 545020, 622880, 641200, 681275, 778600, 872032, 1090040, 1282400, 1362550, 1557200, 2180080, 2725100, 3114400, 4360160, 5450200, 10900400, 21800800]

約数ペア:

[(1, 21800800), (2, 10900400), (4, 5450200), (5, 4360160), (7, 3114400), (8, 2725100), (10, 2180080), (14, 1557200), (16, 1362550), (17, 1282400), (20, 1090040), (25, 872032), (28, 778600), (32, 681275), (34, 641200), (35, 622880), (40, 545020), (50, 436016), (56, 389300), (68, 320600), (70, 311440), (80, 272510), (85, 256480), (100, 218008), (112, 194650), (119, 183200), (136, 160300), (140, 155720), (160, 136255), (170, 128240), (175, 124576), (200, 109004), (224, 97325), (229, 95200), (238, 91600), (272, 80150), (280, 77860), (340, 64120), (350, 62288), (400, 54502), (425, 51296), (458, 47600), (476, 45800), (544, 40075), (560, 38930), (595, 36640), (680, 32060), (700, 31144), (800, 27251), (850, 25648), (916, 23800), (952, 22900), (1120, 19465), (1145, 19040), (1190, 18320), (1360, 16030), (1400, 15572), (1603, 13600), (1700, 12824), (1832, 11900), (1904, 11450), (2290, 9520), (2380, 9160), (2720, 8015), (2800, 7786), (2975, 7328), (3206, 6800), (3400, 6412), (3664, 5950), (3808, 5725), (3893, 5600), (4580, 4760)]