256578840

素因数分解:

$2^3\times 3^7\times 5^1\times 7^1\times {\mathrm{419}}^1$

素因数の和:458

約数の個数: 256

約数和(自身を含む): 991872000

約数和(自身を除く): 735293160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 315, 324, 360, 378, 405, 419, 420, 486, 504, 540, 567, 630, 648, 729, 756, 810, 838, 840, 945, 972, 1080, 1134, 1215, 1257, 1260, 1458, 1512, 1620, 1676, 1701, 1890, 1944, 2095, 2187, 2268, 2430, 2514, 2520, 2835, 2916, 2933, 3240, 3352, 3402, 3645, 3771, 3780, 4190, 4374, 4536, 4860, 5028, 5103, 5670, 5832, 5866, 6285, 6804, 7290, 7542, 7560, 8380, 8505, 8748, 8799, 9720, 10056, 10206, 10935, 11313, 11340, 11732, 12570, 13608, 14580, 14665, 15084, 15309, 16760, 17010, 17496, 17598, 18855, 20412, 21870, 22626, 22680, 23464, 25140, 25515, 26397, 29160, 29330, 30168, 30618, 33939, 34020, 35196, 37710, 40824, 43740, 43995, 45252, 50280, 51030, 52794, 56565, 58660, 61236, 67878, 68040, 70392, 75420, 76545, 79191, 87480, 87990, 90504, 101817, 102060, 105588, 113130, 117320, 122472, 131985, 135756, 150840, 153090, 158382, 169695, 175980, 203634, 204120, 211176, 226260, 237573, 263970, 271512, 305451, 306180, 316764, 339390, 351960, 395955, 407268, 452520, 475146, 509085, 527940, 610902, 612360, 633528, 678780, 712719, 791910, 814536, 916353, 950292, 1018170, 1055880, 1187865, 1221804, 1357560, 1425438, 1527255, 1583820, 1832706, 1900584, 2036340, 2138157, 2375730, 2443608, 2850876, 3054510, 3167640, 3563595, 3665412, 4072680, 4276314, 4581765, 4751460, 5701752, 6109020, 6414471, 7127190, 7330824, 8552628, 9163530, 9502920, 10690785, 12218040, 12828942, 14254380, 17105256, 18327060, 21381570, 25657884, 28508760, 32072355, 36654120, 42763140, 51315768, 64144710, 85526280, 128289420, 256578840]

約数ペア:

[(1, 256578840), (2, 128289420), (3, 85526280), (4, 64144710), (5, 51315768), (6, 42763140), (7, 36654120), (8, 32072355), (9, 28508760), (10, 25657884), (12, 21381570), (14, 18327060), (15, 17105256), (18, 14254380), (20, 12828942), (21, 12218040), (24, 10690785), (27, 9502920), (28, 9163530), (30, 8552628), (35, 7330824), (36, 7127190), (40, 6414471), (42, 6109020), (45, 5701752), (54, 4751460), (56, 4581765), (60, 4276314), (63, 4072680), (70, 3665412), (72, 3563595), (81, 3167640), (84, 3054510), (90, 2850876), (105, 2443608), (108, 2375730), (120, 2138157), (126, 2036340), (135, 1900584), (140, 1832706), (162, 1583820), (168, 1527255), (180, 1425438), (189, 1357560), (210, 1221804), (216, 1187865), (243, 1055880), (252, 1018170), (270, 950292), (280, 916353), (315, 814536), (324, 791910), (360, 712719), (378, 678780), (405, 633528), (419, 612360), (420, 610902), (486, 527940), (504, 509085), (540, 475146), (567, 452520), (630, 407268), (648, 395955), (729, 351960), (756, 339390), (810, 316764), (838, 306180), (840, 305451), (945, 271512), (972, 263970), (1080, 237573), (1134, 226260), (1215, 211176), (1257, 204120), (1260, 203634), (1458, 175980), (1512, 169695), (1620, 158382), (1676, 153090), (1701, 150840), (1890, 135756), (1944, 131985), (2095, 122472), (2187, 117320), (2268, 113130), (2430, 105588), (2514, 102060), (2520, 101817), (2835, 90504), (2916, 87990), (2933, 87480), (3240, 79191), (3352, 76545), (3402, 75420), (3645, 70392), (3771, 68040), (3780, 67878), (4190, 61236), (4374, 58660), (4536, 56565), (4860, 52794), (5028, 51030), (5103, 50280), (5670, 45252), (5832, 43995), (5866, 43740), (6285, 40824), (6804, 37710), (7290, 35196), (7542, 34020), (7560, 33939), (8380, 30618), (8505, 30168), (8748, 29330), (8799, 29160), (9720, 26397), (10056, 25515), (10206, 25140), (10935, 23464), (11313, 22680), (11340, 22626), (11732, 21870), (12570, 20412), (13608, 18855), (14580, 17598), (14665, 17496), (15084, 17010), (15309, 16760)]