20059920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:310

約数の個数: 160

約数和(自身を含む): 71245440

約数和(自身を除く): 51185520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 37, 40, 45, 48, 54, 60, 72, 74, 80, 90, 108, 111, 120, 135, 144, 148, 180, 185, 216, 222, 240, 251, 270, 296, 333, 360, 370, 432, 444, 502, 540, 555, 592, 666, 720, 740, 753, 888, 999, 1004, 1080, 1110, 1255, 1332, 1480, 1506, 1665, 1776, 1998, 2008, 2160, 2220, 2259, 2510, 2664, 2960, 3012, 3330, 3765, 3996, 4016, 4440, 4518, 4995, 5020, 5328, 6024, 6660, 6777, 7530, 7992, 8880, 9036, 9287, 9990, 10040, 11295, 12048, 13320, 13554, 15060, 15984, 18072, 18574, 19980, 20080, 22590, 26640, 27108, 27861, 30120, 33885, 36144, 37148, 39960, 45180, 46435, 54216, 55722, 60240, 67770, 74296, 79920, 83583, 90360, 92870, 108432, 111444, 135540, 139305, 148592, 167166, 180720, 185740, 222888, 250749, 271080, 278610, 334332, 371480, 417915, 445776, 501498, 542160, 557220, 668664, 742960, 835830, 1002996, 1114440, 1253745, 1337328, 1671660, 2005992, 2228880, 2507490, 3343320, 4011984, 5014980, 6686640, 10029960, 20059920]

約数ペア:

[(1, 20059920), (2, 10029960), (3, 6686640), (4, 5014980), (5, 4011984), (6, 3343320), (8, 2507490), (9, 2228880), (10, 2005992), (12, 1671660), (15, 1337328), (16, 1253745), (18, 1114440), (20, 1002996), (24, 835830), (27, 742960), (30, 668664), (36, 557220), (37, 542160), (40, 501498), (45, 445776), (48, 417915), (54, 371480), (60, 334332), (72, 278610), (74, 271080), (80, 250749), (90, 222888), (108, 185740), (111, 180720), (120, 167166), (135, 148592), (144, 139305), (148, 135540), (180, 111444), (185, 108432), (216, 92870), (222, 90360), (240, 83583), (251, 79920), (270, 74296), (296, 67770), (333, 60240), (360, 55722), (370, 54216), (432, 46435), (444, 45180), (502, 39960), (540, 37148), (555, 36144), (592, 33885), (666, 30120), (720, 27861), (740, 27108), (753, 26640), (888, 22590), (999, 20080), (1004, 19980), (1080, 18574), (1110, 18072), (1255, 15984), (1332, 15060), (1480, 13554), (1506, 13320), (1665, 12048), (1776, 11295), (1998, 10040), (2008, 9990), (2160, 9287), (2220, 9036), (2259, 8880), (2510, 7992), (2664, 7530), (2960, 6777), (3012, 6660), (3330, 6024), (3765, 5328), (3996, 5020), (4016, 4995), (4440, 4518)]