217879920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:324

約数の個数: 240

約数和(自身を含む): 779950080

約数和(自身を除く): 562070160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 59, 60, 69, 72, 80, 90, 92, 115, 118, 120, 138, 144, 177, 180, 184, 207, 223, 230, 236, 240, 276, 295, 345, 354, 360, 368, 414, 446, 460, 472, 531, 552, 590, 669, 690, 708, 720, 828, 885, 892, 920, 944, 1035, 1062, 1104, 1115, 1180, 1338, 1357, 1380, 1416, 1656, 1770, 1784, 1840, 2007, 2070, 2124, 2230, 2360, 2655, 2676, 2714, 2760, 2832, 3312, 3345, 3540, 3568, 4014, 4071, 4140, 4248, 4460, 4720, 5129, 5310, 5352, 5428, 5520, 6690, 6785, 7080, 8028, 8142, 8280, 8496, 8920, 10035, 10258, 10620, 10704, 10856, 12213, 13157, 13380, 13570, 14160, 15387, 16056, 16284, 16560, 17840, 20070, 20355, 20516, 21240, 21712, 24426, 25645, 26314, 26760, 27140, 30774, 32112, 32568, 39471, 40140, 40710, 41032, 42480, 46161, 48852, 51290, 52628, 53520, 54280, 61065, 61548, 65136, 65785, 76935, 78942, 80280, 81420, 82064, 92322, 97704, 102580, 105256, 108560, 118413, 122130, 123096, 131570, 153870, 157884, 160560, 162840, 184644, 195408, 197355, 205160, 210512, 230805, 236826, 244260, 246192, 263140, 302611, 307740, 315768, 325680, 369288, 394710, 410320, 461610, 473652, 488520, 526280, 592065, 605222, 615480, 631536, 738576, 789420, 907833, 923220, 947304, 977040, 1052560, 1184130, 1210444, 1230960, 1513055, 1578840, 1815666, 1846440, 1894608, 2368260, 2420888, 2723499, 3026110, 3157680, 3631332, 3692880, 4539165, 4736520, 4841776, 5446998, 6052220, 7262664, 9078330, 9473040, 10893996, 12104440, 13617495, 14525328, 18156660, 21787992, 24208880, 27234990, 36313320, 43575984, 54469980, 72626640, 108939960, 217879920]

約数ペア:

[(1, 217879920), (2, 108939960), (3, 72626640), (4, 54469980), (5, 43575984), (6, 36313320), (8, 27234990), (9, 24208880), (10, 21787992), (12, 18156660), (15, 14525328), (16, 13617495), (18, 12104440), (20, 10893996), (23, 9473040), (24, 9078330), (30, 7262664), (36, 6052220), (40, 5446998), (45, 4841776), (46, 4736520), (48, 4539165), (59, 3692880), (60, 3631332), (69, 3157680), (72, 3026110), (80, 2723499), (90, 2420888), (92, 2368260), (115, 1894608), (118, 1846440), (120, 1815666), (138, 1578840), (144, 1513055), (177, 1230960), (180, 1210444), (184, 1184130), (207, 1052560), (223, 977040), (230, 947304), (236, 923220), (240, 907833), (276, 789420), (295, 738576), (345, 631536), (354, 615480), (360, 605222), (368, 592065), (414, 526280), (446, 488520), (460, 473652), (472, 461610), (531, 410320), (552, 394710), (590, 369288), (669, 325680), (690, 315768), (708, 307740), (720, 302611), (828, 263140), (885, 246192), (892, 244260), (920, 236826), (944, 230805), (1035, 210512), (1062, 205160), (1104, 197355), (1115, 195408), (1180, 184644), (1338, 162840), (1357, 160560), (1380, 157884), (1416, 153870), (1656, 131570), (1770, 123096), (1784, 122130), (1840, 118413), (2007, 108560), (2070, 105256), (2124, 102580), (2230, 97704), (2360, 92322), (2655, 82064), (2676, 81420), (2714, 80280), (2760, 78942), (2832, 76935), (3312, 65785), (3345, 65136), (3540, 61548), (3568, 61065), (4014, 54280), (4071, 53520), (4140, 52628), (4248, 51290), (4460, 48852), (4720, 46161), (5129, 42480), (5310, 41032), (5352, 40710), (5428, 40140), (5520, 39471), (6690, 32568), (6785, 32112), (7080, 30774), (8028, 27140), (8142, 26760), (8280, 26314), (8496, 25645), (8920, 24426), (10035, 21712), (10258, 21240), (10620, 20516), (10704, 20355), (10856, 20070), (12213, 17840), (13157, 16560), (13380, 16284), (13570, 16056), (14160, 15387)]