40012720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1109}}^1$

素因数の和:1174

約数の個数: 80

約数和(自身を含む): 104055840

約数和(自身を除く): 64043120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 328, 410, 440, 451, 656, 820, 880, 902, 1109, 1640, 1804, 2218, 2255, 3280, 3608, 4436, 4510, 5545, 7216, 8872, 9020, 11090, 12199, 17744, 18040, 22180, 24398, 36080, 44360, 45469, 48796, 60995, 88720, 90938, 97592, 121990, 181876, 195184, 227345, 243980, 363752, 454690, 487960, 500159, 727504, 909380, 975920, 1000318, 1818760, 2000636, 2500795, 3637520, 4001272, 5001590, 8002544, 10003180, 20006360, 40012720]

約数ペア:

[(1, 40012720), (2, 20006360), (4, 10003180), (5, 8002544), (8, 5001590), (10, 4001272), (11, 3637520), (16, 2500795), (20, 2000636), (22, 1818760), (40, 1000318), (41, 975920), (44, 909380), (55, 727504), (80, 500159), (82, 487960), (88, 454690), (110, 363752), (164, 243980), (176, 227345), (205, 195184), (220, 181876), (328, 121990), (410, 97592), (440, 90938), (451, 88720), (656, 60995), (820, 48796), (880, 45469), (902, 44360), (1109, 36080), (1640, 24398), (1804, 22180), (2218, 18040), (2255, 17744), (3280, 12199), (3608, 11090), (4436, 9020), (4510, 8872), (5545, 7216)]