20388637980

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{47137}}^1$

素因数の和:47250

約数の個数: 144

約数和(自身を含む): 64858116960

約数和(自身を除く): 44469478980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 89, 90, 108, 135, 162, 178, 180, 243, 267, 270, 324, 356, 405, 445, 486, 534, 540, 801, 810, 890, 972, 1068, 1215, 1335, 1602, 1620, 1780, 2403, 2430, 2670, 3204, 4005, 4806, 4860, 5340, 7209, 8010, 9612, 12015, 14418, 16020, 21627, 24030, 28836, 36045, 43254, 47137, 48060, 72090, 86508, 94274, 108135, 141411, 144180, 188548, 216270, 235685, 282822, 424233, 432540, 471370, 565644, 707055, 848466, 942740, 1272699, 1414110, 1696932, 2121165, 2545398, 2828220, 3818097, 4195193, 4242330, 5090796, 6363495, 7636194, 8390386, 8484660, 11454291, 12585579, 12726990, 15272388, 16780772, 19090485, 20975965, 22908582, 25171158, 25453980, 37756737, 38180970, 41951930, 45817164, 50342316, 57271455, 62927895, 75513474, 76361940, 83903860, 113270211, 114542910, 125855790, 151026948, 188783685, 226540422, 229085820, 251711580, 339810633, 377567370, 453080844, 566351055, 679621266, 755134740, 1019431899, 1132702110, 1359242532, 1699053165, 2038863798, 2265404220, 3398106330, 4077727596, 5097159495, 6796212660, 10194318990, 20388637980]

約数ペア:

[(1, 20388637980), (2, 10194318990), (3, 6796212660), (4, 5097159495), (5, 4077727596), (6, 3398106330), (9, 2265404220), (10, 2038863798), (12, 1699053165), (15, 1359242532), (18, 1132702110), (20, 1019431899), (27, 755134740), (30, 679621266), (36, 566351055), (45, 453080844), (54, 377567370), (60, 339810633), (81, 251711580), (89, 229085820), (90, 226540422), (108, 188783685), (135, 151026948), (162, 125855790), (178, 114542910), (180, 113270211), (243, 83903860), (267, 76361940), (270, 75513474), (324, 62927895), (356, 57271455), (405, 50342316), (445, 45817164), (486, 41951930), (534, 38180970), (540, 37756737), (801, 25453980), (810, 25171158), (890, 22908582), (972, 20975965), (1068, 19090485), (1215, 16780772), (1335, 15272388), (1602, 12726990), (1620, 12585579), (1780, 11454291), (2403, 8484660), (2430, 8390386), (2670, 7636194), (3204, 6363495), (4005, 5090796), (4806, 4242330), (4860, 4195193), (5340, 3818097), (7209, 2828220), (8010, 2545398), (9612, 2121165), (12015, 1696932), (14418, 1414110), (16020, 1272699), (21627, 942740), (24030, 848466), (28836, 707055), (36045, 565644), (43254, 471370), (47137, 432540), (48060, 424233), (72090, 282822), (86508, 235685), (94274, 216270), (108135, 188548), (141411, 144180)]