51131080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1277}}^1$

素因数の和:1319

約数の個数: 128

約数和(自身を含む): 154586880

約数和(自身を除く): 103455800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1277, 1430, 1540, 1820, 2002, 2554, 2860, 3080, 3640, 4004, 5005, 5108, 5720, 6385, 8008, 8939, 10010, 10216, 12770, 14047, 16601, 17878, 20020, 25540, 28094, 33202, 35756, 40040, 44695, 51080, 56188, 66404, 70235, 71512, 83005, 89390, 98329, 112376, 116207, 132808, 140470, 166010, 178780, 182611, 196658, 232414, 280940, 332020, 357560, 365222, 393316, 464828, 491645, 561880, 581035, 664040, 730444, 786632, 913055, 929656, 983290, 1162070, 1278277, 1460888, 1826110, 1966580, 2324140, 2556554, 3652220, 3933160, 4648280, 5113108, 6391385, 7304440, 10226216, 12782770, 25565540, 51131080]

約数ペア:

[(1, 51131080), (2, 25565540), (4, 12782770), (5, 10226216), (7, 7304440), (8, 6391385), (10, 5113108), (11, 4648280), (13, 3933160), (14, 3652220), (20, 2556554), (22, 2324140), (26, 1966580), (28, 1826110), (35, 1460888), (40, 1278277), (44, 1162070), (52, 983290), (55, 929656), (56, 913055), (65, 786632), (70, 730444), (77, 664040), (88, 581035), (91, 561880), (104, 491645), (110, 464828), (130, 393316), (140, 365222), (143, 357560), (154, 332020), (182, 280940), (220, 232414), (260, 196658), (280, 182611), (286, 178780), (308, 166010), (364, 140470), (385, 132808), (440, 116207), (455, 112376), (520, 98329), (572, 89390), (616, 83005), (715, 71512), (728, 70235), (770, 66404), (910, 56188), (1001, 51080), (1144, 44695), (1277, 40040), (1430, 35756), (1540, 33202), (1820, 28094), (2002, 25540), (2554, 20020), (2860, 17878), (3080, 16601), (3640, 14047), (4004, 12770), (5005, 10216), (5108, 10010), (5720, 8939), (6385, 8008)]