1998341.00000000

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{367}}^1$

素因数の和:439

約数の個数: 128

約数和(自身を含む): 211438080

約数和(自身を除く): 133766200

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 37, 40, 44, 52, 55, 65, 74, 88, 104, 110, 130, 143, 148, 185, 220, 260, 286, 296, 367, 370, 407, 440, 481, 520, 572, 715, 734, 740, 814, 962, 1144, 1430, 1468, 1480, 1628, 1835, 1924, 2035, 2405, 2860, 2936, 3256, 3670, 3848, 4037, 4070, 4771, 4810, 5291, 5720, 7340, 8074, 8140, 9542, 9620, 10582, 13579, 14680, 16148, 16280, 19084, 19240, 20185, 21164, 23855, 26455, 27158, 32296, 38168, 40370, 42328, 47710, 52481, 52910, 54316, 67895, 80740, 95420, 104962, 105820, 108632, 135790, 149369, 161480, 176527, 190840, 209924, 211640, 262405, 271580, 298738, 353054, 419848, 524810, 543160, 597476, 706108, 746845, 882635, 1049620, 1194952, 1412216, 1493690, 1765270, 1941797, 2099240, 2987380, 3530540, 3883594, 5974760, 7061080, 7767188, 9708985, 15534376, 19417970, 38835940, 77671880]

約数ペア:

[(1, 77671880), (2, 38835940), (4, 19417970), (5, 15534376), (8, 9708985), (10, 7767188), (11, 7061080), (13, 5974760), (20, 3883594), (22, 3530540), (26, 2987380), (37, 2099240), (40, 1941797), (44, 1765270), (52, 1493690), (55, 1412216), (65, 1194952), (74, 1049620), (88, 882635), (104, 746845), (110, 706108), (130, 597476), (143, 543160), (148, 524810), (185, 419848), (220, 353054), (260, 298738), (286, 271580), (296, 262405), (367, 211640), (370, 209924), (407, 190840), (440, 176527), (481, 161480), (520, 149369), (572, 135790), (715, 108632), (734, 105820), (740, 104962), (814, 95420), (962, 80740), (1144, 67895), (1430, 54316), (1468, 52910), (1480, 52481), (1628, 47710), (1835, 42328), (1924, 40370), (2035, 38168), (2405, 32296), (2860, 27158), (2936, 26455), (3256, 23855), (3670, 21164), (3848, 20185), (4037, 19240), (4070, 19084), (4771, 16280), (4810, 16148), (5291, 14680), (5720, 13579), (7340, 10582), (8074, 9620), (8140, 9542)]