217395720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{859}}^1$

素因数の和:932

約数の個数: 192

約数和(自身を含む): 764712000

約数和(自身を除く): 547316280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 37, 38, 40, 45, 57, 60, 72, 74, 76, 90, 95, 111, 114, 120, 148, 152, 171, 180, 185, 190, 222, 228, 285, 296, 333, 342, 360, 370, 380, 444, 456, 555, 570, 666, 684, 703, 740, 760, 855, 859, 888, 1110, 1140, 1332, 1368, 1406, 1480, 1665, 1710, 1718, 2109, 2220, 2280, 2577, 2664, 2812, 3330, 3420, 3436, 3515, 4218, 4295, 4440, 5154, 5624, 6327, 6660, 6840, 6872, 7030, 7731, 8436, 8590, 10308, 10545, 12654, 12885, 13320, 14060, 15462, 16321, 16872, 17180, 20616, 21090, 25308, 25770, 28120, 30924, 31635, 31783, 32642, 34360, 38655, 42180, 48963, 50616, 51540, 61848, 63270, 63566, 65284, 77310, 81605, 84360, 95349, 97926, 103080, 126540, 127132, 130568, 146889, 154620, 158915, 163210, 190698, 195852, 244815, 253080, 254264, 286047, 293778, 309240, 317830, 326420, 381396, 391704, 476745, 489630, 572094, 587556, 603877, 635660, 652840, 734445, 762792, 953490, 979260, 1144188, 1175112, 1207754, 1271320, 1430235, 1468890, 1811631, 1906980, 1958520, 2288376, 2415508, 2860470, 2937780, 3019385, 3623262, 3813960, 4831016, 5434893, 5720940, 5875560, 6038770, 7246524, 9058155, 10869786, 11441880, 12077540, 14493048, 18116310, 21739572, 24155080, 27174465, 36232620, 43479144, 54348930, 72465240, 108697860, 217395720]

約数ペア:

[(1, 217395720), (2, 108697860), (3, 72465240), (4, 54348930), (5, 43479144), (6, 36232620), (8, 27174465), (9, 24155080), (10, 21739572), (12, 18116310), (15, 14493048), (18, 12077540), (19, 11441880), (20, 10869786), (24, 9058155), (30, 7246524), (36, 6038770), (37, 5875560), (38, 5720940), (40, 5434893), (45, 4831016), (57, 3813960), (60, 3623262), (72, 3019385), (74, 2937780), (76, 2860470), (90, 2415508), (95, 2288376), (111, 1958520), (114, 1906980), (120, 1811631), (148, 1468890), (152, 1430235), (171, 1271320), (180, 1207754), (185, 1175112), (190, 1144188), (222, 979260), (228, 953490), (285, 762792), (296, 734445), (333, 652840), (342, 635660), (360, 603877), (370, 587556), (380, 572094), (444, 489630), (456, 476745), (555, 391704), (570, 381396), (666, 326420), (684, 317830), (703, 309240), (740, 293778), (760, 286047), (855, 254264), (859, 253080), (888, 244815), (1110, 195852), (1140, 190698), (1332, 163210), (1368, 158915), (1406, 154620), (1480, 146889), (1665, 130568), (1710, 127132), (1718, 126540), (2109, 103080), (2220, 97926), (2280, 95349), (2577, 84360), (2664, 81605), (2812, 77310), (3330, 65284), (3420, 63566), (3436, 63270), (3515, 61848), (4218, 51540), (4295, 50616), (4440, 48963), (5154, 42180), (5624, 38655), (6327, 34360), (6660, 32642), (6840, 31783), (6872, 31635), (7030, 30924), (7731, 28120), (8436, 25770), (8590, 25308), (10308, 21090), (10545, 20616), (12654, 17180), (12885, 16872), (13320, 16321), (14060, 15462)]