20402256

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1481}}^1$

素因数の和:1540

約数の個数: 80

約数和(自身を含む): 61746048

約数和(自身を除く): 41343792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 41, 42, 48, 56, 82, 84, 112, 123, 164, 168, 246, 287, 328, 336, 492, 574, 656, 861, 984, 1148, 1481, 1722, 1968, 2296, 2962, 3444, 4443, 4592, 5924, 6888, 8886, 10367, 11848, 13776, 17772, 20734, 23696, 31101, 35544, 41468, 60721, 62202, 71088, 82936, 121442, 124404, 165872, 182163, 242884, 248808, 364326, 425047, 485768, 497616, 728652, 850094, 971536, 1275141, 1457304, 1700188, 2550282, 2914608, 3400376, 5100564, 6800752, 10201128, 20402256]

約数ペア:

[(1, 20402256), (2, 10201128), (3, 6800752), (4, 5100564), (6, 3400376), (7, 2914608), (8, 2550282), (12, 1700188), (14, 1457304), (16, 1275141), (21, 971536), (24, 850094), (28, 728652), (41, 497616), (42, 485768), (48, 425047), (56, 364326), (82, 248808), (84, 242884), (112, 182163), (123, 165872), (164, 124404), (168, 121442), (246, 82936), (287, 71088), (328, 62202), (336, 60721), (492, 41468), (574, 35544), (656, 31101), (861, 23696), (984, 20734), (1148, 17772), (1481, 13776), (1722, 11848), (1968, 10367), (2296, 8886), (2962, 6888), (3444, 5924), (4443, 4592)]