247491720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1723}}^1$

素因数の和:1769

約数の個数: 256

約数和(自身を含む): 993024000

約数和(自身を除く): 745532280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 54, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 108, 114, 120, 126, 133, 135, 140, 152, 168, 171, 180, 189, 190, 210, 216, 228, 252, 266, 270, 280, 285, 315, 342, 360, 378, 380, 399, 420, 456, 504, 513, 532, 540, 570, 630, 665, 684, 756, 760, 798, 840, 855, 945, 1026, 1064, 1080, 1140, 1197, 1260, 1330, 1368, 1512, 1596, 1710, 1723, 1890, 1995, 2052, 2280, 2394, 2520, 2565, 2660, 3192, 3420, 3446, 3591, 3780, 3990, 4104, 4788, 5130, 5169, 5320, 5985, 6840, 6892, 7182, 7560, 7980, 8615, 9576, 10260, 10338, 11970, 12061, 13784, 14364, 15507, 15960, 17230, 17955, 20520, 20676, 23940, 24122, 25845, 28728, 31014, 32737, 34460, 35910, 36183, 41352, 46521, 47880, 48244, 51690, 60305, 62028, 65474, 68920, 71820, 72366, 77535, 93042, 96488, 98211, 103380, 108549, 120610, 124056, 130948, 143640, 144732, 155070, 163685, 180915, 186084, 196422, 206760, 217098, 229159, 232605, 241220, 261896, 289464, 294633, 310140, 325647, 327370, 361830, 372168, 392844, 434196, 458318, 465210, 482440, 491055, 542745, 589266, 620280, 651294, 654740, 687477, 723660, 785688, 868392, 883899, 916636, 930420, 982110, 1085490, 1145795, 1178532, 1302588, 1309480, 1374954, 1447320, 1473165, 1628235, 1767798, 1833272, 1860840, 1964220, 2062431, 2170980, 2291590, 2357064, 2605176, 2749908, 2946330, 3256470, 3437385, 3535596, 3928440, 4124862, 4341960, 4419495, 4583180, 5499816, 5892660, 6187293, 6512940, 6874770, 7071192, 8249724, 8838990, 9166360, 10312155, 11785320, 12374586, 13025880, 13749540, 16499448, 17677980, 20624310, 24749172, 27499080, 30936465, 35355960, 41248620, 49498344, 61872930, 82497240, 123745860, 247491720]

約数ペア:

[(1, 247491720), (2, 123745860), (3, 82497240), (4, 61872930), (5, 49498344), (6, 41248620), (7, 35355960), (8, 30936465), (9, 27499080), (10, 24749172), (12, 20624310), (14, 17677980), (15, 16499448), (18, 13749540), (19, 13025880), (20, 12374586), (21, 11785320), (24, 10312155), (27, 9166360), (28, 8838990), (30, 8249724), (35, 7071192), (36, 6874770), (38, 6512940), (40, 6187293), (42, 5892660), (45, 5499816), (54, 4583180), (56, 4419495), (57, 4341960), (60, 4124862), (63, 3928440), (70, 3535596), (72, 3437385), (76, 3256470), (84, 2946330), (90, 2749908), (95, 2605176), (105, 2357064), (108, 2291590), (114, 2170980), (120, 2062431), (126, 1964220), (133, 1860840), (135, 1833272), (140, 1767798), (152, 1628235), (168, 1473165), (171, 1447320), (180, 1374954), (189, 1309480), (190, 1302588), (210, 1178532), (216, 1145795), (228, 1085490), (252, 982110), (266, 930420), (270, 916636), (280, 883899), (285, 868392), (315, 785688), (342, 723660), (360, 687477), (378, 654740), (380, 651294), (399, 620280), (420, 589266), (456, 542745), (504, 491055), (513, 482440), (532, 465210), (540, 458318), (570, 434196), (630, 392844), (665, 372168), (684, 361830), (756, 327370), (760, 325647), (798, 310140), (840, 294633), (855, 289464), (945, 261896), (1026, 241220), (1064, 232605), (1080, 229159), (1140, 217098), (1197, 206760), (1260, 196422), (1330, 186084), (1368, 180915), (1512, 163685), (1596, 155070), (1710, 144732), (1723, 143640), (1890, 130948), (1995, 124056), (2052, 120610), (2280, 108549), (2394, 103380), (2520, 98211), (2565, 96488), (2660, 93042), (3192, 77535), (3420, 72366), (3446, 71820), (3591, 68920), (3780, 65474), (3990, 62028), (4104, 60305), (4788, 51690), (5130, 48244), (5169, 47880), (5320, 46521), (5985, 41352), (6840, 36183), (6892, 35910), (7182, 34460), (7560, 32737), (7980, 31014), (8615, 28728), (9576, 25845), (10260, 24122), (10338, 23940), (11970, 20676), (12061, 20520), (13784, 17955), (14364, 17230), (15507, 15960)]