80520440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2011}}^1$

素因数の和:2053

約数の個数: 128

約数和(自身を含む): 243371520

約数和(自身を除く): 162851080

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, 1430, 1540, 1820, 2002, 2011, 2860, 3080, 3640, 4004, 4022, 5005, 5720, 8008, 8044, 10010, 10055, 14077, 16088, 20020, 20110, 22121, 26143, 28154, 40040, 40220, 44242, 52286, 56308, 70385, 80440, 88484, 104572, 110605, 112616, 130715, 140770, 154847, 176968, 183001, 209144, 221210, 261430, 281540, 287573, 309694, 366002, 442420, 522860, 563080, 575146, 619388, 732004, 774235, 884840, 915005, 1045720, 1150292, 1238776, 1437865, 1464008, 1548470, 1830010, 2013011, 2300584, 2875730, 3096940, 3660020, 4026022, 5751460, 6193880, 7320040, 8052044, 10065055, 11502920, 16104088, 20130110, 40260220, 80520440]

約数ペア:

[(1, 80520440), (2, 40260220), (4, 20130110), (5, 16104088), (7, 11502920), (8, 10065055), (10, 8052044), (11, 7320040), (13, 6193880), (14, 5751460), (20, 4026022), (22, 3660020), (26, 3096940), (28, 2875730), (35, 2300584), (40, 2013011), (44, 1830010), (52, 1548470), (55, 1464008), (56, 1437865), (65, 1238776), (70, 1150292), (77, 1045720), (88, 915005), (91, 884840), (104, 774235), (110, 732004), (130, 619388), (140, 575146), (143, 563080), (154, 522860), (182, 442420), (220, 366002), (260, 309694), (280, 287573), (286, 281540), (308, 261430), (364, 221210), (385, 209144), (440, 183001), (455, 176968), (520, 154847), (572, 140770), (616, 130715), (715, 112616), (728, 110605), (770, 104572), (910, 88484), (1001, 80440), (1144, 70385), (1430, 56308), (1540, 52286), (1820, 44242), (2002, 40220), (2011, 40040), (2860, 28154), (3080, 26143), (3640, 22121), (4004, 20110), (4022, 20020), (5005, 16088), (5720, 14077), (8008, 10055), (8044, 10010)]