728915880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{78887}}^1$

素因数の和:78919

約数の個数: 128

約数和(自身を含む): 2726369280

約数和(自身を除く): 1997453400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 3080, 4620, 9240, 78887, 157774, 236661, 315548, 394435, 473322, 552209, 631096, 788870, 867757, 946644, 1104418, 1183305, 1577740, 1656627, 1735514, 1893288, 2208836, 2366610, 2603271, 2761045, 3155480, 3313254, 3471028, 4338785, 4417672, 4733220, 5206542, 5522090, 6074299, 6626508, 6942056, 8283135, 8677570, 9466440, 10413084, 11044180, 12148598, 13016355, 13253016, 16566270, 17355140, 18222897, 20826168, 22088360, 24297196, 26032710, 30371495, 33132540, 34710280, 36445794, 48594392, 52065420, 60742990, 66265080, 72891588, 91114485, 104130840, 121485980, 145783176, 182228970, 242971960, 364457940, 728915880]

約数ペア:

[(1, 728915880), (2, 364457940), (3, 242971960), (4, 182228970), (5, 145783176), (6, 121485980), (7, 104130840), (8, 91114485), (10, 72891588), (11, 66265080), (12, 60742990), (14, 52065420), (15, 48594392), (20, 36445794), (21, 34710280), (22, 33132540), (24, 30371495), (28, 26032710), (30, 24297196), (33, 22088360), (35, 20826168), (40, 18222897), (42, 17355140), (44, 16566270), (55, 13253016), (56, 13016355), (60, 12148598), (66, 11044180), (70, 10413084), (77, 9466440), (84, 8677570), (88, 8283135), (105, 6942056), (110, 6626508), (120, 6074299), (132, 5522090), (140, 5206542), (154, 4733220), (165, 4417672), (168, 4338785), (210, 3471028), (220, 3313254), (231, 3155480), (264, 2761045), (280, 2603271), (308, 2366610), (330, 2208836), (385, 1893288), (420, 1735514), (440, 1656627), (462, 1577740), (616, 1183305), (660, 1104418), (770, 946644), (840, 867757), (924, 788870), (1155, 631096), (1320, 552209), (1540, 473322), (1848, 394435), (2310, 315548), (3080, 236661), (4620, 157774), (9240, 78887)]