221081520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:392

約数の個数: 240

約数和(自身を含む): 788449536

約数和(自身を除く): 567368016

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 23, 24, 30, 33, 40, 44, 46, 48, 55, 60, 66, 69, 80, 88, 92, 110, 115, 120, 121, 132, 138, 165, 176, 184, 220, 230, 240, 242, 253, 264, 276, 330, 331, 345, 363, 368, 440, 460, 484, 506, 528, 552, 605, 660, 662, 690, 726, 759, 880, 920, 968, 993, 1012, 1104, 1210, 1265, 1320, 1324, 1380, 1452, 1518, 1655, 1815, 1840, 1936, 1986, 2024, 2420, 2530, 2640, 2648, 2760, 2783, 2904, 3036, 3310, 3630, 3641, 3795, 3972, 4048, 4840, 4965, 5060, 5296, 5520, 5566, 5808, 6072, 6620, 7260, 7282, 7590, 7613, 7944, 8349, 9680, 9930, 10120, 10923, 11132, 12144, 13240, 13915, 14520, 14564, 15180, 15226, 15888, 16698, 18205, 19860, 20240, 21846, 22264, 22839, 26480, 27830, 29040, 29128, 30360, 30452, 33396, 36410, 38065, 39720, 40051, 41745, 43692, 44528, 45678, 54615, 55660, 58256, 60720, 60904, 66792, 72820, 76130, 79440, 80102, 83490, 83743, 87384, 91356, 109230, 111320, 114195, 120153, 121808, 133584, 145640, 152260, 160204, 166980, 167486, 174768, 182712, 200255, 218460, 222640, 228390, 240306, 251229, 291280, 304520, 320408, 333960, 334972, 365424, 400510, 418715, 436920, 456780, 480612, 502458, 600765, 609040, 640816, 667920, 669944, 801020, 837430, 873840, 913560, 921173, 961224, 1004916, 1201530, 1256145, 1339888, 1602040, 1674860, 1827120, 1842346, 1922448, 2009832, 2403060, 2512290, 2763519, 3204080, 3349720, 3684692, 4019664, 4605865, 4806120, 5024580, 5527038, 6699440, 7369384, 9211730, 9612240, 10049160, 11054076, 13817595, 14738768, 18423460, 20098320, 22108152, 27635190, 36846920, 44216304, 55270380, 73693840, 110540760, 221081520]

約数ペア:

[(1, 221081520), (2, 110540760), (3, 73693840), (4, 55270380), (5, 44216304), (6, 36846920), (8, 27635190), (10, 22108152), (11, 20098320), (12, 18423460), (15, 14738768), (16, 13817595), (20, 11054076), (22, 10049160), (23, 9612240), (24, 9211730), (30, 7369384), (33, 6699440), (40, 5527038), (44, 5024580), (46, 4806120), (48, 4605865), (55, 4019664), (60, 3684692), (66, 3349720), (69, 3204080), (80, 2763519), (88, 2512290), (92, 2403060), (110, 2009832), (115, 1922448), (120, 1842346), (121, 1827120), (132, 1674860), (138, 1602040), (165, 1339888), (176, 1256145), (184, 1201530), (220, 1004916), (230, 961224), (240, 921173), (242, 913560), (253, 873840), (264, 837430), (276, 801020), (330, 669944), (331, 667920), (345, 640816), (363, 609040), (368, 600765), (440, 502458), (460, 480612), (484, 456780), (506, 436920), (528, 418715), (552, 400510), (605, 365424), (660, 334972), (662, 333960), (690, 320408), (726, 304520), (759, 291280), (880, 251229), (920, 240306), (968, 228390), (993, 222640), (1012, 218460), (1104, 200255), (1210, 182712), (1265, 174768), (1320, 167486), (1324, 166980), (1380, 160204), (1452, 152260), (1518, 145640), (1655, 133584), (1815, 121808), (1840, 120153), (1936, 114195), (1986, 111320), (2024, 109230), (2420, 91356), (2530, 87384), (2640, 83743), (2648, 83490), (2760, 80102), (2783, 79440), (2904, 76130), (3036, 72820), (3310, 66792), (3630, 60904), (3641, 60720), (3795, 58256), (3972, 55660), (4048, 54615), (4840, 45678), (4965, 44528), (5060, 43692), (5296, 41745), (5520, 40051), (5566, 39720), (5808, 38065), (6072, 36410), (6620, 33396), (7260, 30452), (7282, 30360), (7590, 29128), (7613, 29040), (7944, 27830), (8349, 26480), (9680, 22839), (9930, 22264), (10120, 21846), (10923, 20240), (11132, 19860), (12144, 18205), (13240, 16698), (13915, 15888), (14520, 15226), (14564, 15180)]