20006360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1109}}^1$

素因数の和:1172

約数の個数: 64

約数和(自身を含む): 50349600

約数和(自身を除く): 30343240

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, 1109, 1640, 1804, 2218, 2255, 3608, 4436, 4510, 5545, 8872, 9020, 11090, 12199, 18040, 22180, 24398, 44360, 45469, 48796, 60995, 90938, 97592, 121990, 181876, 227345, 243980, 363752, 454690, 487960, 500159, 909380, 1000318, 1818760, 2000636, 2500795, 4001272, 5001590, 10003180, 20006360]

約数ペア:

[(1, 20006360), (2, 10003180), (4, 5001590), (5, 4001272), (8, 2500795), (10, 2000636), (11, 1818760), (20, 1000318), (22, 909380), (40, 500159), (41, 487960), (44, 454690), (55, 363752), (82, 243980), (88, 227345), (110, 181876), (164, 121990), (205, 97592), (220, 90938), (328, 60995), (410, 48796), (440, 45469), (451, 44360), (820, 24398), (902, 22180), (1109, 18040), (1640, 12199), (1804, 11090), (2218, 9020), (2255, 8872), (3608, 5545), (4436, 4510)]