78037960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1949}}^1$

素因数の和:1991

約数の個数: 128

約数和(自身を含む): 235872000

約数和(自身を除く): 157834040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1820, 1949, 2002, 2860, 3080, 3640, 3898, 4004, 5005, 5720, 7796, 8008, 9745, 10010, 13643, 15592, 19490, 20020, 21439, 25337, 27286, 38980, 40040, 42878, 50674, 54572, 68215, 77960, 85756, 101348, 107195, 109144, 126685, 136430, 150073, 171512, 177359, 202696, 214390, 253370, 272860, 278707, 300146, 354718, 428780, 506740, 545720, 557414, 600292, 709436, 750365, 857560, 886795, 1013480, 1114828, 1200584, 1393535, 1418872, 1500730, 1773590, 1950949, 2229656, 2787070, 3001460, 3547180, 3901898, 5574140, 6002920, 7094360, 7803796, 9754745, 11148280, 15607592, 19509490, 39018980, 78037960]

約数ペア:

[(1, 78037960), (2, 39018980), (4, 19509490), (5, 15607592), (7, 11148280), (8, 9754745), (10, 7803796), (11, 7094360), (13, 6002920), (14, 5574140), (20, 3901898), (22, 3547180), (26, 3001460), (28, 2787070), (35, 2229656), (40, 1950949), (44, 1773590), (52, 1500730), (55, 1418872), (56, 1393535), (65, 1200584), (70, 1114828), (77, 1013480), (88, 886795), (91, 857560), (104, 750365), (110, 709436), (130, 600292), (140, 557414), (143, 545720), (154, 506740), (182, 428780), (220, 354718), (260, 300146), (280, 278707), (286, 272860), (308, 253370), (364, 214390), (385, 202696), (440, 177359), (455, 171512), (520, 150073), (572, 136430), (616, 126685), (715, 109144), (728, 107195), (770, 101348), (910, 85756), (1001, 77960), (1144, 68215), (1430, 54572), (1540, 50674), (1820, 42878), (1949, 40040), (2002, 38980), (2860, 27286), (3080, 25337), (3640, 21439), (3898, 20020), (4004, 19490), (5005, 15592), (5720, 13643), (7796, 10010), (8008, 9745)]