78210720

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{7759}}^1$

素因数の和:7787

約数の個数: 144

約数和(自身を含む): 305061120

約数和(自身を除く): 226850400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 7759, 10080, 15518, 23277, 31036, 38795, 46554, 54313, 62072, 69831, 77590, 93108, 108626, 116385, 124144, 139662, 155180, 162939, 186216, 217252, 232770, 248288, 271565, 279324, 310360, 325878, 349155, 372432, 434504, 465540, 488817, 543130, 558648, 620720, 651756, 698310, 744864, 814695, 869008, 931080, 977634, 1086260, 1117296, 1241440, 1303512, 1396620, 1629390, 1738016, 1862160, 1955268, 2172520, 2234592, 2444085, 2607024, 2793240, 3258780, 3724320, 3910536, 4345040, 4888170, 5214048, 5586480, 6517560, 7821072, 8690080, 9776340, 11172960, 13035120, 15642144, 19552680, 26070240, 39105360, 78210720]

約数ペア:

[(1, 78210720), (2, 39105360), (3, 26070240), (4, 19552680), (5, 15642144), (6, 13035120), (7, 11172960), (8, 9776340), (9, 8690080), (10, 7821072), (12, 6517560), (14, 5586480), (15, 5214048), (16, 4888170), (18, 4345040), (20, 3910536), (21, 3724320), (24, 3258780), (28, 2793240), (30, 2607024), (32, 2444085), (35, 2234592), (36, 2172520), (40, 1955268), (42, 1862160), (45, 1738016), (48, 1629390), (56, 1396620), (60, 1303512), (63, 1241440), (70, 1117296), (72, 1086260), (80, 977634), (84, 931080), (90, 869008), (96, 814695), (105, 744864), (112, 698310), (120, 651756), (126, 620720), (140, 558648), (144, 543130), (160, 488817), (168, 465540), (180, 434504), (210, 372432), (224, 349155), (240, 325878), (252, 310360), (280, 279324), (288, 271565), (315, 248288), (336, 232770), (360, 217252), (420, 186216), (480, 162939), (504, 155180), (560, 139662), (630, 124144), (672, 116385), (720, 108626), (840, 93108), (1008, 77590), (1120, 69831), (1260, 62072), (1440, 54313), (1680, 46554), (2016, 38795), (2520, 31036), (3360, 23277), (5040, 15518), (7759, 10080)]