289807840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:561

約数の個数: 192

約数和(自身を含む): 856977408

約数和(自身を除く): 567169568

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 31, 32, 34, 35, 40, 56, 62, 68, 70, 80, 85, 112, 119, 124, 136, 140, 155, 160, 170, 217, 224, 238, 248, 272, 280, 310, 340, 434, 476, 491, 496, 527, 544, 560, 595, 620, 680, 868, 952, 982, 992, 1054, 1085, 1120, 1190, 1240, 1360, 1736, 1904, 1964, 2108, 2170, 2380, 2455, 2480, 2635, 2720, 3437, 3472, 3689, 3808, 3928, 4216, 4340, 4760, 4910, 4960, 5270, 6874, 6944, 7378, 7856, 8347, 8432, 8680, 9520, 9820, 10540, 13748, 14756, 15221, 15712, 16694, 16864, 17185, 17360, 18445, 19040, 19640, 21080, 27496, 29512, 30442, 33388, 34370, 34720, 36890, 39280, 41735, 42160, 54992, 58429, 59024, 60884, 66776, 68740, 73780, 76105, 78560, 83470, 84320, 106547, 109984, 116858, 118048, 121768, 133552, 137480, 147560, 152210, 166940, 213094, 233716, 243536, 258757, 267104, 274960, 292145, 295120, 304420, 333880, 426188, 467432, 487072, 517514, 532735, 549920, 584290, 590240, 608840, 667760, 852376, 934864, 1035028, 1065470, 1168580, 1217680, 1293785, 1335520, 1704752, 1811299, 1869728, 2070056, 2130940, 2337160, 2435360, 2587570, 3409504, 3622598, 4140112, 4261880, 4674320, 5175140, 7245196, 8280224, 8523760, 9056495, 9348640, 10350280, 14490392, 17047520, 18112990, 20700560, 28980784, 36225980, 41401120, 57961568, 72451960, 144903920, 289807840]

約数ペア:

[(1, 289807840), (2, 144903920), (4, 72451960), (5, 57961568), (7, 41401120), (8, 36225980), (10, 28980784), (14, 20700560), (16, 18112990), (17, 17047520), (20, 14490392), (28, 10350280), (31, 9348640), (32, 9056495), (34, 8523760), (35, 8280224), (40, 7245196), (56, 5175140), (62, 4674320), (68, 4261880), (70, 4140112), (80, 3622598), (85, 3409504), (112, 2587570), (119, 2435360), (124, 2337160), (136, 2130940), (140, 2070056), (155, 1869728), (160, 1811299), (170, 1704752), (217, 1335520), (224, 1293785), (238, 1217680), (248, 1168580), (272, 1065470), (280, 1035028), (310, 934864), (340, 852376), (434, 667760), (476, 608840), (491, 590240), (496, 584290), (527, 549920), (544, 532735), (560, 517514), (595, 487072), (620, 467432), (680, 426188), (868, 333880), (952, 304420), (982, 295120), (992, 292145), (1054, 274960), (1085, 267104), (1120, 258757), (1190, 243536), (1240, 233716), (1360, 213094), (1736, 166940), (1904, 152210), (1964, 147560), (2108, 137480), (2170, 133552), (2380, 121768), (2455, 118048), (2480, 116858), (2635, 109984), (2720, 106547), (3437, 84320), (3472, 83470), (3689, 78560), (3808, 76105), (3928, 73780), (4216, 68740), (4340, 66776), (4760, 60884), (4910, 59024), (4960, 58429), (5270, 54992), (6874, 42160), (6944, 41735), (7378, 39280), (7856, 36890), (8347, 34720), (8432, 34370), (8680, 33388), (9520, 30442), (9820, 29512), (10540, 27496), (13748, 21080), (14756, 19640), (15221, 19040), (15712, 18445), (16694, 17360), (16864, 17185)]