20188640

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:292

約数の個数: 96

約数和(自身を含む): 52164000

約数和(自身を除く): 31975360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 32, 38, 40, 58, 76, 80, 95, 116, 145, 152, 160, 190, 229, 232, 290, 304, 380, 458, 464, 551, 580, 608, 760, 916, 928, 1102, 1145, 1160, 1520, 1832, 2204, 2290, 2320, 2755, 3040, 3664, 4351, 4408, 4580, 4640, 5510, 6641, 7328, 8702, 8816, 9160, 11020, 13282, 17404, 17632, 18320, 21755, 22040, 26564, 33205, 34808, 36640, 43510, 44080, 53128, 66410, 69616, 87020, 88160, 106256, 126179, 132820, 139232, 174040, 212512, 252358, 265640, 348080, 504716, 531280, 630895, 696160, 1009432, 1062560, 1261790, 2018864, 2523580, 4037728, 5047160, 10094320, 20188640]

約数ペア:

[(1, 20188640), (2, 10094320), (4, 5047160), (5, 4037728), (8, 2523580), (10, 2018864), (16, 1261790), (19, 1062560), (20, 1009432), (29, 696160), (32, 630895), (38, 531280), (40, 504716), (58, 348080), (76, 265640), (80, 252358), (95, 212512), (116, 174040), (145, 139232), (152, 132820), (160, 126179), (190, 106256), (229, 88160), (232, 87020), (290, 69616), (304, 66410), (380, 53128), (458, 44080), (464, 43510), (551, 36640), (580, 34808), (608, 33205), (760, 26564), (916, 22040), (928, 21755), (1102, 18320), (1145, 17632), (1160, 17404), (1520, 13282), (1832, 11020), (2204, 9160), (2290, 8816), (2320, 8702), (2755, 7328), (3040, 6641), (3664, 5510), (4351, 4640), (4408, 4580)]