18743560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1039}}^1$

素因数の和:1102

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 28430840

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, 1039, 1640, 1804, 2078, 2255, 3608, 4156, 4510, 5195, 8312, 9020, 10390, 11429, 18040, 20780, 22858, 41560, 42599, 45716, 57145, 85198, 91432, 114290, 170396, 212995, 228580, 340792, 425990, 457160, 468589, 851980, 937178, 1703960, 1874356, 2342945, 3748712, 4685890, 9371780, 18743560]

約数ペア:

[(1, 18743560), (2, 9371780), (4, 4685890), (5, 3748712), (8, 2342945), (10, 1874356), (11, 1703960), (20, 937178), (22, 851980), (40, 468589), (41, 457160), (44, 425990), (55, 340792), (82, 228580), (88, 212995), (110, 170396), (164, 114290), (205, 91432), (220, 85198), (328, 57145), (410, 45716), (440, 42599), (451, 41560), (820, 22858), (902, 20780), (1039, 18040), (1640, 11429), (1804, 10390), (2078, 9020), (2255, 8312), (3608, 5195), (4156, 4510)]