30000520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1663}}^1$

素因数の和:1726

約数の個数: 64

約数和(自身を含む): 75479040

約数和(自身を除く): 45478520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1640, 1663, 1804, 2255, 3326, 3608, 4510, 6652, 8315, 9020, 13304, 16630, 18040, 18293, 33260, 36586, 66520, 68183, 73172, 91465, 136366, 146344, 182930, 272732, 340915, 365860, 545464, 681830, 731720, 750013, 1363660, 1500026, 2727320, 3000052, 3750065, 6000104, 7500130, 15000260, 30000520]

約数ペア:

[(1, 30000520), (2, 15000260), (4, 7500130), (5, 6000104), (8, 3750065), (10, 3000052), (11, 2727320), (20, 1500026), (22, 1363660), (40, 750013), (41, 731720), (44, 681830), (55, 545464), (82, 365860), (88, 340915), (110, 272732), (164, 182930), (205, 146344), (220, 136366), (328, 91465), (410, 73172), (440, 68183), (451, 66520), (820, 36586), (902, 33260), (1640, 18293), (1663, 18040), (1804, 16630), (2255, 13304), (3326, 9020), (3608, 8315), (4510, 6652)]