78819930

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:381

約数の個数: 144

約数和(自身を含む): 243125064

約数和(自身を除く): 164305134

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 61, 63, 70, 90, 98, 105, 122, 126, 147, 183, 210, 245, 293, 294, 305, 315, 366, 427, 441, 490, 549, 586, 610, 630, 735, 854, 879, 882, 915, 1098, 1281, 1465, 1470, 1758, 1830, 2051, 2135, 2205, 2562, 2637, 2745, 2930, 2989, 3843, 4102, 4270, 4395, 4410, 5274, 5490, 5978, 6153, 6405, 7686, 8790, 8967, 10255, 12306, 12810, 13185, 14357, 14945, 17873, 17934, 18459, 19215, 20510, 26370, 26901, 28714, 29890, 30765, 35746, 36918, 38430, 43071, 44835, 53619, 53802, 61530, 71785, 86142, 89365, 89670, 92295, 107238, 125111, 129213, 134505, 143570, 160857, 178730, 184590, 215355, 250222, 258426, 268095, 269010, 321714, 375333, 430710, 536190, 625555, 646065, 750666, 804285, 875777, 1125999, 1251110, 1292130, 1608570, 1751554, 1876665, 2251998, 2627331, 3753330, 4378885, 5254662, 5629995, 7881993, 8757770, 11259990, 13136655, 15763986, 26273310, 39409965, 78819930]

約数ペア:

[(1, 78819930), (2, 39409965), (3, 26273310), (5, 15763986), (6, 13136655), (7, 11259990), (9, 8757770), (10, 7881993), (14, 5629995), (15, 5254662), (18, 4378885), (21, 3753330), (30, 2627331), (35, 2251998), (42, 1876665), (45, 1751554), (49, 1608570), (61, 1292130), (63, 1251110), (70, 1125999), (90, 875777), (98, 804285), (105, 750666), (122, 646065), (126, 625555), (147, 536190), (183, 430710), (210, 375333), (245, 321714), (293, 269010), (294, 268095), (305, 258426), (315, 250222), (366, 215355), (427, 184590), (441, 178730), (490, 160857), (549, 143570), (586, 134505), (610, 129213), (630, 125111), (735, 107238), (854, 92295), (879, 89670), (882, 89365), (915, 86142), (1098, 71785), (1281, 61530), (1465, 53802), (1470, 53619), (1758, 44835), (1830, 43071), (2051, 38430), (2135, 36918), (2205, 35746), (2562, 30765), (2637, 29890), (2745, 28714), (2930, 26901), (2989, 26370), (3843, 20510), (4102, 19215), (4270, 18459), (4395, 17934), (4410, 17873), (5274, 14945), (5490, 14357), (5978, 13185), (6153, 12810), (6405, 12306), (7686, 10255), (8790, 8967)]