21957200

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{3229}}^1$

素因数の和:3264

約数の個数: 60

約数和(自身を含む): 55872540

約数和(自身を除く): 33915340

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 3229, 3400, 6458, 6800, 12916, 16145, 25832, 32290, 51664, 54893, 64580, 80725, 109786, 129160, 161450, 219572, 258320, 274465, 322900, 439144, 548930, 645800, 878288, 1097860, 1291600, 1372325, 2195720, 2744650, 4391440, 5489300, 10978600, 21957200]

約数ペア:

[(1, 21957200), (2, 10978600), (4, 5489300), (5, 4391440), (8, 2744650), (10, 2195720), (16, 1372325), (17, 1291600), (20, 1097860), (25, 878288), (34, 645800), (40, 548930), (50, 439144), (68, 322900), (80, 274465), (85, 258320), (100, 219572), (136, 161450), (170, 129160), (200, 109786), (272, 80725), (340, 64580), (400, 54893), (425, 51664), (680, 32290), (850, 25832), (1360, 16145), (1700, 12916), (3229, 6800), (3400, 6458)]