2551321520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{461}}^1$

素因数の和:835

約数の個数: 160

約数和(自身を含む): 6847061760

約数和(自身を除く): 4295740240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 331, 380, 418, 440, 461, 662, 760, 836, 880, 922, 1045, 1324, 1520, 1655, 1672, 1844, 2090, 2305, 2648, 3310, 3344, 3641, 3688, 4180, 4610, 5071, 5296, 6289, 6620, 7282, 7376, 8360, 8759, 9220, 10142, 12578, 13240, 14564, 16720, 17518, 18205, 18440, 20284, 25156, 25355, 26480, 29128, 31445, 35036, 36410, 36880, 40568, 43795, 50312, 50710, 58256, 62890, 69179, 70072, 72820, 81136, 87590, 96349, 100624, 101420, 125780, 138358, 140144, 145640, 152591, 175180, 192698, 202840, 251560, 276716, 291280, 305182, 345895, 350360, 385396, 405680, 481745, 503120, 553432, 610364, 691790, 700720, 762955, 770792, 963490, 1106864, 1220728, 1383580, 1525910, 1541584, 1678501, 1926980, 2441456, 2767160, 2899229, 3051820, 3357002, 3853960, 5534320, 5798458, 6103640, 6714004, 7707920, 8392505, 11596916, 12207280, 13428008, 14496145, 16785010, 23193832, 26856016, 28992290, 31891519, 33570020, 46387664, 57984580, 63783038, 67140040, 115969160, 127566076, 134280080, 159457595, 231938320, 255132152, 318915190, 510264304, 637830380, 1275660760, 2551321520]

約数ペア:

[(1, 2551321520), (2, 1275660760), (4, 637830380), (5, 510264304), (8, 318915190), (10, 255132152), (11, 231938320), (16, 159457595), (19, 134280080), (20, 127566076), (22, 115969160), (38, 67140040), (40, 63783038), (44, 57984580), (55, 46387664), (76, 33570020), (80, 31891519), (88, 28992290), (95, 26856016), (110, 23193832), (152, 16785010), (176, 14496145), (190, 13428008), (209, 12207280), (220, 11596916), (304, 8392505), (331, 7707920), (380, 6714004), (418, 6103640), (440, 5798458), (461, 5534320), (662, 3853960), (760, 3357002), (836, 3051820), (880, 2899229), (922, 2767160), (1045, 2441456), (1324, 1926980), (1520, 1678501), (1655, 1541584), (1672, 1525910), (1844, 1383580), (2090, 1220728), (2305, 1106864), (2648, 963490), (3310, 770792), (3344, 762955), (3641, 700720), (3688, 691790), (4180, 610364), (4610, 553432), (5071, 503120), (5296, 481745), (6289, 405680), (6620, 385396), (7282, 350360), (7376, 345895), (8360, 305182), (8759, 291280), (9220, 276716), (10142, 251560), (12578, 202840), (13240, 192698), (14564, 175180), (16720, 152591), (17518, 145640), (18205, 140144), (18440, 138358), (20284, 125780), (25156, 101420), (25355, 100624), (26480, 96349), (29128, 87590), (31445, 81136), (35036, 72820), (36410, 70072), (36880, 69179), (40568, 62890), (43795, 58256), (50312, 50710)]