20108760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:705

約数の個数: 128

約数和(自身を含む): 70917120

約数和(自身を除く): 50808360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 518, 555, 647, 740, 777, 840, 888, 1036, 1110, 1294, 1295, 1480, 1554, 1941, 2072, 2220, 2588, 2590, 3108, 3235, 3882, 3885, 4440, 4529, 5176, 5180, 6216, 6470, 7764, 7770, 9058, 9705, 10360, 12940, 13587, 15528, 15540, 18116, 19410, 22645, 23939, 25880, 27174, 31080, 36232, 38820, 45290, 47878, 54348, 67935, 71817, 77640, 90580, 95756, 108696, 119695, 135870, 143634, 167573, 181160, 191512, 239390, 271740, 287268, 335146, 359085, 478780, 502719, 543480, 574536, 670292, 718170, 837865, 957560, 1005438, 1340584, 1436340, 1675730, 2010876, 2513595, 2872680, 3351460, 4021752, 5027190, 6702920, 10054380, 20108760]

約数ペア:

[(1, 20108760), (2, 10054380), (3, 6702920), (4, 5027190), (5, 4021752), (6, 3351460), (7, 2872680), (8, 2513595), (10, 2010876), (12, 1675730), (14, 1436340), (15, 1340584), (20, 1005438), (21, 957560), (24, 837865), (28, 718170), (30, 670292), (35, 574536), (37, 543480), (40, 502719), (42, 478780), (56, 359085), (60, 335146), (70, 287268), (74, 271740), (84, 239390), (105, 191512), (111, 181160), (120, 167573), (140, 143634), (148, 135870), (168, 119695), (185, 108696), (210, 95756), (222, 90580), (259, 77640), (280, 71817), (296, 67935), (370, 54348), (420, 47878), (444, 45290), (518, 38820), (555, 36232), (647, 31080), (740, 27174), (777, 25880), (840, 23939), (888, 22645), (1036, 19410), (1110, 18116), (1294, 15540), (1295, 15528), (1480, 13587), (1554, 12940), (1941, 10360), (2072, 9705), (2220, 9058), (2588, 7770), (2590, 7764), (3108, 6470), (3235, 6216), (3882, 5180), (3885, 5176), (4440, 4529)]