20155718100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{1019}}^1\times {\mathrm{9419}}^1$

素因数の和:10462

約数の個数: 144

約数和(自身を含む): 66720729600

約数和(自身を除く): 46565011500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1019, 1050, 2038, 2100, 3057, 4076, 5095, 6114, 7133, 9419, 10190, 12228, 14266, 15285, 18838, 20380, 21399, 25475, 28257, 28532, 30570, 35665, 37676, 42798, 47095, 50950, 56514, 61140, 65933, 71330, 76425, 85596, 94190, 101900, 106995, 113028, 131866, 141285, 142660, 152850, 178325, 188380, 197799, 213990, 235475, 263732, 282570, 305700, 329665, 356650, 395598, 427980, 470950, 534975, 565140, 659330, 706425, 713300, 791196, 941900, 988995, 1069950, 1318660, 1412850, 1648325, 1977990, 2139900, 2825700, 3296650, 3955980, 4944975, 6593300, 9597961, 9889950, 19195922, 19779900, 28793883, 38391844, 47989805, 57587766, 67185727, 95979610, 115175532, 134371454, 143969415, 191959220, 201557181, 239949025, 268742908, 287938830, 335928635, 403114362, 479898050, 575877660, 671857270, 719847075, 806228724, 959796100, 1007785905, 1343714540, 1439694150, 1679643175, 2015571810, 2879388300, 3359286350, 4031143620, 5038929525, 6718572700, 10077859050, 20155718100]

約数ペア:

[(1, 20155718100), (2, 10077859050), (3, 6718572700), (4, 5038929525), (5, 4031143620), (6, 3359286350), (7, 2879388300), (10, 2015571810), (12, 1679643175), (14, 1439694150), (15, 1343714540), (20, 1007785905), (21, 959796100), (25, 806228724), (28, 719847075), (30, 671857270), (35, 575877660), (42, 479898050), (50, 403114362), (60, 335928635), (70, 287938830), (75, 268742908), (84, 239949025), (100, 201557181), (105, 191959220), (140, 143969415), (150, 134371454), (175, 115175532), (210, 95979610), (300, 67185727), (350, 57587766), (420, 47989805), (525, 38391844), (700, 28793883), (1019, 19779900), (1050, 19195922), (2038, 9889950), (2100, 9597961), (3057, 6593300), (4076, 4944975), (5095, 3955980), (6114, 3296650), (7133, 2825700), (9419, 2139900), (10190, 1977990), (12228, 1648325), (14266, 1412850), (15285, 1318660), (18838, 1069950), (20380, 988995), (21399, 941900), (25475, 791196), (28257, 713300), (28532, 706425), (30570, 659330), (35665, 565140), (37676, 534975), (42798, 470950), (47095, 427980), (50950, 395598), (56514, 356650), (61140, 329665), (65933, 305700), (71330, 282570), (76425, 263732), (85596, 235475), (94190, 213990), (101900, 197799), (106995, 188380), (113028, 178325), (131866, 152850), (141285, 142660)]