256702920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{112589}}^1$

素因数の和:112622

約数の個数: 64

約数和(自身を含む): 810648000

約数和(自身を除く): 553945080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 112589, 225178, 337767, 450356, 562945, 675534, 900712, 1125890, 1351068, 1688835, 2139191, 2251780, 2702136, 3377670, 4278382, 4503560, 6417573, 6755340, 8556764, 10695955, 12835146, 13510680, 17113528, 21391910, 25670292, 32087865, 42783820, 51340584, 64175730, 85567640, 128351460, 256702920]

約数ペア:

[(1, 256702920), (2, 128351460), (3, 85567640), (4, 64175730), (5, 51340584), (6, 42783820), (8, 32087865), (10, 25670292), (12, 21391910), (15, 17113528), (19, 13510680), (20, 12835146), (24, 10695955), (30, 8556764), (38, 6755340), (40, 6417573), (57, 4503560), (60, 4278382), (76, 3377670), (95, 2702136), (114, 2251780), (120, 2139191), (152, 1688835), (190, 1351068), (228, 1125890), (285, 900712), (380, 675534), (456, 562945), (570, 450356), (760, 337767), (1140, 225178), (2280, 112589)]