77810320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:213

約数の個数: 160

約数和(自身を含む): 222842880

約数和(自身を除く): 145032560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 71, 76, 80, 95, 103, 112, 133, 140, 142, 152, 190, 206, 266, 280, 284, 304, 355, 380, 412, 497, 515, 532, 560, 568, 665, 710, 721, 760, 824, 994, 1030, 1064, 1136, 1330, 1349, 1420, 1442, 1520, 1648, 1957, 1988, 2060, 2128, 2485, 2660, 2698, 2840, 2884, 3605, 3914, 3976, 4120, 4970, 5320, 5396, 5680, 5768, 6745, 7210, 7313, 7828, 7952, 8240, 9443, 9785, 9940, 10640, 10792, 11536, 13490, 13699, 14420, 14626, 15656, 18886, 19570, 19880, 21584, 26980, 27398, 28840, 29252, 31312, 36565, 37772, 39140, 39760, 47215, 51191, 53960, 54796, 57680, 58504, 68495, 73130, 75544, 78280, 94430, 102382, 107920, 109592, 117008, 136990, 138947, 146260, 151088, 156560, 188860, 204764, 219184, 255955, 273980, 277894, 292520, 377720, 409528, 511910, 547960, 555788, 585040, 694735, 755440, 819056, 972629, 1023820, 1095920, 1111576, 1389470, 1945258, 2047640, 2223152, 2778940, 3890516, 4095280, 4863145, 5557880, 7781032, 9726290, 11115760, 15562064, 19452580, 38905160, 77810320]

約数ペア:

[(1, 77810320), (2, 38905160), (4, 19452580), (5, 15562064), (7, 11115760), (8, 9726290), (10, 7781032), (14, 5557880), (16, 4863145), (19, 4095280), (20, 3890516), (28, 2778940), (35, 2223152), (38, 2047640), (40, 1945258), (56, 1389470), (70, 1111576), (71, 1095920), (76, 1023820), (80, 972629), (95, 819056), (103, 755440), (112, 694735), (133, 585040), (140, 555788), (142, 547960), (152, 511910), (190, 409528), (206, 377720), (266, 292520), (280, 277894), (284, 273980), (304, 255955), (355, 219184), (380, 204764), (412, 188860), (497, 156560), (515, 151088), (532, 146260), (560, 138947), (568, 136990), (665, 117008), (710, 109592), (721, 107920), (760, 102382), (824, 94430), (994, 78280), (1030, 75544), (1064, 73130), (1136, 68495), (1330, 58504), (1349, 57680), (1420, 54796), (1442, 53960), (1520, 51191), (1648, 47215), (1957, 39760), (1988, 39140), (2060, 37772), (2128, 36565), (2485, 31312), (2660, 29252), (2698, 28840), (2840, 27398), (2884, 26980), (3605, 21584), (3914, 19880), (3976, 19570), (4120, 18886), (4970, 15656), (5320, 14626), (5396, 14420), (5680, 13699), (5768, 13490), (6745, 11536), (7210, 10792), (7313, 10640), (7828, 9940), (7952, 9785), (8240, 9443)]