20670100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:110

約数の個数: 144

約数和(自身を含む): 54996480

約数和(自身を除く): 34326380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 23, 25, 38, 43, 44, 46, 50, 55, 76, 86, 92, 95, 100, 110, 115, 172, 190, 209, 215, 220, 230, 253, 275, 380, 418, 430, 437, 460, 473, 475, 506, 550, 575, 817, 836, 860, 874, 946, 950, 989, 1012, 1045, 1075, 1100, 1150, 1265, 1634, 1748, 1892, 1900, 1978, 2090, 2150, 2185, 2300, 2365, 2530, 3268, 3956, 4085, 4180, 4300, 4370, 4730, 4807, 4945, 5060, 5225, 6325, 8170, 8740, 8987, 9460, 9614, 9890, 10450, 10879, 10925, 11825, 12650, 16340, 17974, 18791, 19228, 19780, 20425, 20900, 21758, 21850, 23650, 24035, 24725, 25300, 35948, 37582, 40850, 43516, 43700, 44935, 47300, 48070, 49450, 54395, 75164, 81700, 89870, 93955, 96140, 98900, 108790, 120175, 179740, 187910, 206701, 217580, 224675, 240350, 271975, 375820, 413402, 449350, 469775, 480700, 543950, 826804, 898700, 939550, 1033505, 1087900, 1879100, 2067010, 4134020, 5167525, 10335050, 20670100]

約数ペア:

[(1, 20670100), (2, 10335050), (4, 5167525), (5, 4134020), (10, 2067010), (11, 1879100), (19, 1087900), (20, 1033505), (22, 939550), (23, 898700), (25, 826804), (38, 543950), (43, 480700), (44, 469775), (46, 449350), (50, 413402), (55, 375820), (76, 271975), (86, 240350), (92, 224675), (95, 217580), (100, 206701), (110, 187910), (115, 179740), (172, 120175), (190, 108790), (209, 98900), (215, 96140), (220, 93955), (230, 89870), (253, 81700), (275, 75164), (380, 54395), (418, 49450), (430, 48070), (437, 47300), (460, 44935), (473, 43700), (475, 43516), (506, 40850), (550, 37582), (575, 35948), (817, 25300), (836, 24725), (860, 24035), (874, 23650), (946, 21850), (950, 21758), (989, 20900), (1012, 20425), (1045, 19780), (1075, 19228), (1100, 18791), (1150, 17974), (1265, 16340), (1634, 12650), (1748, 11825), (1892, 10925), (1900, 10879), (1978, 10450), (2090, 9890), (2150, 9614), (2185, 9460), (2300, 8987), (2365, 8740), (2530, 8170), (3268, 6325), (3956, 5225), (4085, 5060), (4180, 4945), (4300, 4807), (4370, 4730)]