80472280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:249

約数の個数: 128

約数和(自身を含む): 218234880

約数和(自身を除く): 137762600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 73, 124, 127, 140, 146, 155, 217, 248, 254, 280, 292, 310, 365, 434, 508, 511, 584, 620, 635, 730, 868, 889, 1016, 1022, 1085, 1240, 1270, 1460, 1736, 1778, 2044, 2170, 2263, 2540, 2555, 2920, 3556, 3937, 4088, 4340, 4445, 4526, 5080, 5110, 7112, 7874, 8680, 8890, 9052, 9271, 10220, 11315, 15748, 15841, 17780, 18104, 18542, 19685, 20440, 22630, 27559, 31496, 31682, 35560, 37084, 39370, 45260, 46355, 55118, 63364, 64897, 74168, 78740, 79205, 90520, 92710, 110236, 126728, 129794, 137795, 157480, 158410, 185420, 220472, 259588, 275590, 287401, 316820, 324485, 370840, 519176, 551180, 574802, 633640, 648970, 1102360, 1149604, 1297940, 1437005, 2011807, 2299208, 2595880, 2874010, 4023614, 5748020, 8047228, 10059035, 11496040, 16094456, 20118070, 40236140, 80472280]

約数ペア:

[(1, 80472280), (2, 40236140), (4, 20118070), (5, 16094456), (7, 11496040), (8, 10059035), (10, 8047228), (14, 5748020), (20, 4023614), (28, 2874010), (31, 2595880), (35, 2299208), (40, 2011807), (56, 1437005), (62, 1297940), (70, 1149604), (73, 1102360), (124, 648970), (127, 633640), (140, 574802), (146, 551180), (155, 519176), (217, 370840), (248, 324485), (254, 316820), (280, 287401), (292, 275590), (310, 259588), (365, 220472), (434, 185420), (508, 158410), (511, 157480), (584, 137795), (620, 129794), (635, 126728), (730, 110236), (868, 92710), (889, 90520), (1016, 79205), (1022, 78740), (1085, 74168), (1240, 64897), (1270, 63364), (1460, 55118), (1736, 46355), (1778, 45260), (2044, 39370), (2170, 37084), (2263, 35560), (2540, 31682), (2555, 31496), (2920, 27559), (3556, 22630), (3937, 20440), (4088, 19685), (4340, 18542), (4445, 18104), (4526, 17780), (5080, 15841), (5110, 15748), (7112, 11315), (7874, 10220), (8680, 9271), (8890, 9052)]