20973240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:206

約数の個数: 192

約数和(自身を含む): 75816000

約数和(自身を除く): 54842760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 23, 24, 30, 34, 36, 40, 45, 46, 51, 60, 68, 69, 72, 85, 90, 92, 102, 115, 120, 136, 138, 149, 153, 170, 180, 184, 204, 207, 230, 255, 276, 298, 306, 340, 345, 360, 391, 408, 414, 447, 460, 510, 552, 596, 612, 680, 690, 745, 765, 782, 828, 894, 920, 1020, 1035, 1173, 1192, 1224, 1341, 1380, 1490, 1530, 1564, 1656, 1788, 1955, 2040, 2070, 2235, 2346, 2533, 2682, 2760, 2980, 3060, 3128, 3427, 3519, 3576, 3910, 4140, 4470, 4692, 5066, 5364, 5865, 5960, 6120, 6705, 6854, 7038, 7599, 7820, 8280, 8940, 9384, 10132, 10281, 10728, 11730, 12665, 13410, 13708, 14076, 15198, 15640, 17135, 17595, 17880, 20264, 20562, 22797, 23460, 25330, 26820, 27416, 28152, 30396, 30843, 34270, 35190, 37995, 41124, 45594, 46920, 50660, 51405, 53640, 58259, 60792, 61686, 68540, 70380, 75990, 82248, 91188, 101320, 102810, 113985, 116518, 123372, 137080, 140760, 151980, 154215, 174777, 182376, 205620, 227970, 233036, 246744, 291295, 303960, 308430, 349554, 411240, 455940, 466072, 524331, 582590, 616860, 699108, 873885, 911880, 1048662, 1165180, 1233720, 1398216, 1747770, 2097324, 2330360, 2621655, 3495540, 4194648, 5243310, 6991080, 10486620, 20973240]

約数ペア:

[(1, 20973240), (2, 10486620), (3, 6991080), (4, 5243310), (5, 4194648), (6, 3495540), (8, 2621655), (9, 2330360), (10, 2097324), (12, 1747770), (15, 1398216), (17, 1233720), (18, 1165180), (20, 1048662), (23, 911880), (24, 873885), (30, 699108), (34, 616860), (36, 582590), (40, 524331), (45, 466072), (46, 455940), (51, 411240), (60, 349554), (68, 308430), (69, 303960), (72, 291295), (85, 246744), (90, 233036), (92, 227970), (102, 205620), (115, 182376), (120, 174777), (136, 154215), (138, 151980), (149, 140760), (153, 137080), (170, 123372), (180, 116518), (184, 113985), (204, 102810), (207, 101320), (230, 91188), (255, 82248), (276, 75990), (298, 70380), (306, 68540), (340, 61686), (345, 60792), (360, 58259), (391, 53640), (408, 51405), (414, 50660), (447, 46920), (460, 45594), (510, 41124), (552, 37995), (596, 35190), (612, 34270), (680, 30843), (690, 30396), (745, 28152), (765, 27416), (782, 26820), (828, 25330), (894, 23460), (920, 22797), (1020, 20562), (1035, 20264), (1173, 17880), (1192, 17595), (1224, 17135), (1341, 15640), (1380, 15198), (1490, 14076), (1530, 13708), (1564, 13410), (1656, 12665), (1788, 11730), (1955, 10728), (2040, 10281), (2070, 10132), (2235, 9384), (2346, 8940), (2533, 8280), (2682, 7820), (2760, 7599), (2980, 7038), (3060, 6854), (3128, 6705), (3427, 6120), (3519, 5960), (3576, 5865), (3910, 5364), (4140, 5066), (4470, 4692)]