1256321640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65027}}^1$

素因数の和:65071

約数の個数: 128

約数和(自身を含む): 4494735360

約数和(自身を除く): 3238413720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1288, 1380, 1610, 1932, 2415, 2760, 3220, 3864, 4830, 6440, 9660, 19320, 65027, 130054, 195081, 260108, 325135, 390162, 455189, 520216, 650270, 780324, 910378, 975405, 1300540, 1365567, 1495621, 1560648, 1820756, 1950810, 2275945, 2601080, 2731134, 2991242, 3641512, 3901620, 4486863, 4551890, 5462268, 5982484, 6827835, 7478105, 7803240, 8973726, 9103780, 10469347, 10924536, 11964968, 13655670, 14956210, 17947452, 18207560, 20938694, 22434315, 27311340, 29912420, 31408041, 35894904, 41877388, 44868630, 52346735, 54622680, 59824840, 62816082, 83754776, 89737260, 104693470, 125632164, 157040205, 179474520, 209386940, 251264328, 314080410, 418773880, 628160820, 1256321640]

約数ペア:

[(1, 1256321640), (2, 628160820), (3, 418773880), (4, 314080410), (5, 251264328), (6, 209386940), (7, 179474520), (8, 157040205), (10, 125632164), (12, 104693470), (14, 89737260), (15, 83754776), (20, 62816082), (21, 59824840), (23, 54622680), (24, 52346735), (28, 44868630), (30, 41877388), (35, 35894904), (40, 31408041), (42, 29912420), (46, 27311340), (56, 22434315), (60, 20938694), (69, 18207560), (70, 17947452), (84, 14956210), (92, 13655670), (105, 11964968), (115, 10924536), (120, 10469347), (138, 9103780), (140, 8973726), (161, 7803240), (168, 7478105), (184, 6827835), (210, 5982484), (230, 5462268), (276, 4551890), (280, 4486863), (322, 3901620), (345, 3641512), (420, 2991242), (460, 2731134), (483, 2601080), (552, 2275945), (644, 1950810), (690, 1820756), (805, 1560648), (840, 1495621), (920, 1365567), (966, 1300540), (1288, 975405), (1380, 910378), (1610, 780324), (1932, 650270), (2415, 520216), (2760, 455189), (3220, 390162), (3864, 325135), (4830, 260108), (6440, 195081), (9660, 130054), (19320, 65027)]