78210120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:739

約数の個数: 128

約数和(自身を含む): 250905600

約数和(自身を除く): 172695480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 43, 46, 60, 69, 86, 92, 115, 120, 129, 138, 172, 184, 215, 230, 258, 276, 344, 345, 430, 460, 516, 552, 645, 659, 690, 860, 920, 989, 1032, 1290, 1318, 1380, 1720, 1977, 1978, 2580, 2636, 2760, 2967, 3295, 3954, 3956, 4945, 5160, 5272, 5934, 6590, 7908, 7912, 9885, 9890, 11868, 13180, 14835, 15157, 15816, 19770, 19780, 23736, 26360, 28337, 29670, 30314, 39540, 39560, 45471, 56674, 59340, 60628, 75785, 79080, 85011, 90942, 113348, 118680, 121256, 141685, 151570, 170022, 181884, 226696, 227355, 283370, 303140, 340044, 363768, 425055, 454710, 566740, 606280, 651751, 680088, 850110, 909420, 1133480, 1303502, 1700220, 1818840, 1955253, 2607004, 3258755, 3400440, 3910506, 5214008, 6517510, 7821012, 9776265, 13035020, 15642024, 19552530, 26070040, 39105060, 78210120]

約数ペア:

[(1, 78210120), (2, 39105060), (3, 26070040), (4, 19552530), (5, 15642024), (6, 13035020), (8, 9776265), (10, 7821012), (12, 6517510), (15, 5214008), (20, 3910506), (23, 3400440), (24, 3258755), (30, 2607004), (40, 1955253), (43, 1818840), (46, 1700220), (60, 1303502), (69, 1133480), (86, 909420), (92, 850110), (115, 680088), (120, 651751), (129, 606280), (138, 566740), (172, 454710), (184, 425055), (215, 363768), (230, 340044), (258, 303140), (276, 283370), (344, 227355), (345, 226696), (430, 181884), (460, 170022), (516, 151570), (552, 141685), (645, 121256), (659, 118680), (690, 113348), (860, 90942), (920, 85011), (989, 79080), (1032, 75785), (1290, 60628), (1318, 59340), (1380, 56674), (1720, 45471), (1977, 39560), (1978, 39540), (2580, 30314), (2636, 29670), (2760, 28337), (2967, 26360), (3295, 23736), (3954, 19780), (3956, 19770), (4945, 15816), (5160, 15157), (5272, 14835), (5934, 13180), (6590, 11868), (7908, 9890), (7912, 9885)]