18947940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1511}}^1$

素因数の和:1553

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 42015900

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 30, 33, 38, 44, 55, 57, 60, 66, 76, 95, 110, 114, 132, 165, 190, 209, 220, 228, 285, 330, 380, 418, 570, 627, 660, 836, 1045, 1140, 1254, 1511, 2090, 2508, 3022, 3135, 4180, 4533, 6044, 6270, 7555, 9066, 12540, 15110, 16621, 18132, 22665, 28709, 30220, 33242, 45330, 49863, 57418, 66484, 83105, 86127, 90660, 99726, 114836, 143545, 166210, 172254, 199452, 249315, 287090, 315799, 332420, 344508, 430635, 498630, 574180, 631598, 861270, 947397, 997260, 1263196, 1578995, 1722540, 1894794, 3157990, 3789588, 4736985, 6315980, 9473970, 18947940]

約数ペア:

[(1, 18947940), (2, 9473970), (3, 6315980), (4, 4736985), (5, 3789588), (6, 3157990), (10, 1894794), (11, 1722540), (12, 1578995), (15, 1263196), (19, 997260), (20, 947397), (22, 861270), (30, 631598), (33, 574180), (38, 498630), (44, 430635), (55, 344508), (57, 332420), (60, 315799), (66, 287090), (76, 249315), (95, 199452), (110, 172254), (114, 166210), (132, 143545), (165, 114836), (190, 99726), (209, 90660), (220, 86127), (228, 83105), (285, 66484), (330, 57418), (380, 49863), (418, 45330), (570, 33242), (627, 30220), (660, 28709), (836, 22665), (1045, 18132), (1140, 16621), (1254, 15110), (1511, 12540), (2090, 9066), (2508, 7555), (3022, 6270), (3135, 6044), (4180, 4533)]