205881720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{8209}}^1$

素因数の和:8253

約数の個数: 128

約数和(自身を含む): 709344000

約数和(自身を除く): 503462280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 19, 20, 22, 24, 30, 33, 38, 40, 44, 55, 57, 60, 66, 76, 88, 95, 110, 114, 120, 132, 152, 165, 190, 209, 220, 228, 264, 285, 330, 380, 418, 440, 456, 570, 627, 660, 760, 836, 1045, 1140, 1254, 1320, 1672, 2090, 2280, 2508, 3135, 4180, 5016, 6270, 8209, 8360, 12540, 16418, 24627, 25080, 32836, 41045, 49254, 65672, 82090, 90299, 98508, 123135, 155971, 164180, 180598, 197016, 246270, 270897, 311942, 328360, 361196, 451495, 467913, 492540, 541794, 623884, 722392, 779855, 902990, 935826, 985080, 1083588, 1247768, 1354485, 1559710, 1715681, 1805980, 1871652, 2167176, 2339565, 2708970, 3119420, 3431362, 3611960, 3743304, 4679130, 5147043, 5417940, 6238840, 6862724, 8578405, 9358260, 10294086, 10835880, 13725448, 17156810, 18716520, 20588172, 25735215, 34313620, 41176344, 51470430, 68627240, 102940860, 205881720]

約数ペア:

[(1, 205881720), (2, 102940860), (3, 68627240), (4, 51470430), (5, 41176344), (6, 34313620), (8, 25735215), (10, 20588172), (11, 18716520), (12, 17156810), (15, 13725448), (19, 10835880), (20, 10294086), (22, 9358260), (24, 8578405), (30, 6862724), (33, 6238840), (38, 5417940), (40, 5147043), (44, 4679130), (55, 3743304), (57, 3611960), (60, 3431362), (66, 3119420), (76, 2708970), (88, 2339565), (95, 2167176), (110, 1871652), (114, 1805980), (120, 1715681), (132, 1559710), (152, 1354485), (165, 1247768), (190, 1083588), (209, 985080), (220, 935826), (228, 902990), (264, 779855), (285, 722392), (330, 623884), (380, 541794), (418, 492540), (440, 467913), (456, 451495), (570, 361196), (627, 328360), (660, 311942), (760, 270897), (836, 246270), (1045, 197016), (1140, 180598), (1254, 164180), (1320, 155971), (1672, 123135), (2090, 98508), (2280, 90299), (2508, 82090), (3135, 65672), (4180, 49254), (5016, 41045), (6270, 32836), (8209, 25080), (8360, 24627), (12540, 16418)]