78179940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{881}}^1$

素因数の和:942

約数の個数: 144

約数和(自身を含む): 260048880

約数和(自身を除く): 181868940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 29, 30, 34, 36, 45, 51, 58, 60, 68, 85, 87, 90, 102, 116, 145, 153, 170, 174, 180, 204, 255, 261, 290, 306, 340, 348, 435, 493, 510, 522, 580, 612, 765, 870, 881, 986, 1020, 1044, 1305, 1479, 1530, 1740, 1762, 1972, 2465, 2610, 2643, 2958, 3060, 3524, 4405, 4437, 4930, 5220, 5286, 5916, 7395, 7929, 8810, 8874, 9860, 10572, 13215, 14790, 14977, 15858, 17620, 17748, 22185, 25549, 26430, 29580, 29954, 31716, 39645, 44370, 44931, 51098, 52860, 59908, 74885, 76647, 79290, 88740, 89862, 102196, 127745, 134793, 149770, 153294, 158580, 179724, 224655, 229941, 255490, 269586, 299540, 306588, 383235, 434333, 449310, 459882, 510980, 539172, 673965, 766470, 868666, 898620, 919764, 1149705, 1302999, 1347930, 1532940, 1737332, 2171665, 2299410, 2605998, 2695860, 3908997, 4343330, 4598820, 5211996, 6514995, 7817994, 8686660, 13029990, 15635988, 19544985, 26059980, 39089970, 78179940]

約数ペア:

[(1, 78179940), (2, 39089970), (3, 26059980), (4, 19544985), (5, 15635988), (6, 13029990), (9, 8686660), (10, 7817994), (12, 6514995), (15, 5211996), (17, 4598820), (18, 4343330), (20, 3908997), (29, 2695860), (30, 2605998), (34, 2299410), (36, 2171665), (45, 1737332), (51, 1532940), (58, 1347930), (60, 1302999), (68, 1149705), (85, 919764), (87, 898620), (90, 868666), (102, 766470), (116, 673965), (145, 539172), (153, 510980), (170, 459882), (174, 449310), (180, 434333), (204, 383235), (255, 306588), (261, 299540), (290, 269586), (306, 255490), (340, 229941), (348, 224655), (435, 179724), (493, 158580), (510, 153294), (522, 149770), (580, 134793), (612, 127745), (765, 102196), (870, 89862), (881, 88740), (986, 79290), (1020, 76647), (1044, 74885), (1305, 59908), (1479, 52860), (1530, 51098), (1740, 44931), (1762, 44370), (1972, 39645), (2465, 31716), (2610, 29954), (2643, 29580), (2958, 26430), (3060, 25549), (3524, 22185), (4405, 17748), (4437, 17620), (4930, 15858), (5220, 14977), (5286, 14790), (5916, 13215), (7395, 10572), (7929, 9860), (8810, 8874)]