78137360

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:701

約数の個数: 120

約数和(自身を含む): 218486016

約数和(自身を除く): 140348656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 245, 248, 280, 310, 392, 434, 490, 496, 560, 620, 643, 784, 868, 980, 1085, 1240, 1286, 1519, 1736, 1960, 2170, 2480, 2572, 3038, 3215, 3472, 3920, 4340, 4501, 5144, 6076, 6430, 7595, 8680, 9002, 10288, 12152, 12860, 15190, 17360, 18004, 19933, 22505, 24304, 25720, 30380, 31507, 36008, 39866, 45010, 51440, 60760, 63014, 72016, 79732, 90020, 99665, 121520, 126028, 139531, 157535, 159464, 180040, 199330, 252056, 279062, 315070, 318928, 360080, 398660, 504112, 558124, 630140, 697655, 797320, 976717, 1116248, 1260280, 1395310, 1594640, 1953434, 2232496, 2520560, 2790620, 3906868, 4883585, 5581240, 7813736, 9767170, 11162480, 15627472, 19534340, 39068680, 78137360]

約数ペア:

[(1, 78137360), (2, 39068680), (4, 19534340), (5, 15627472), (7, 11162480), (8, 9767170), (10, 7813736), (14, 5581240), (16, 4883585), (20, 3906868), (28, 2790620), (31, 2520560), (35, 2232496), (40, 1953434), (49, 1594640), (56, 1395310), (62, 1260280), (70, 1116248), (80, 976717), (98, 797320), (112, 697655), (124, 630140), (140, 558124), (155, 504112), (196, 398660), (217, 360080), (245, 318928), (248, 315070), (280, 279062), (310, 252056), (392, 199330), (434, 180040), (490, 159464), (496, 157535), (560, 139531), (620, 126028), (643, 121520), (784, 99665), (868, 90020), (980, 79732), (1085, 72016), (1240, 63014), (1286, 60760), (1519, 51440), (1736, 45010), (1960, 39866), (2170, 36008), (2480, 31507), (2572, 30380), (3038, 25720), (3215, 24304), (3472, 22505), (3920, 19933), (4340, 18004), (4501, 17360), (5144, 15190), (6076, 12860), (6430, 12152), (7595, 10288), (8680, 9002)]