221420220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^4\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 240

約数和(自身を含む): 762320160

約数和(自身を除く): 540899940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 49, 53, 58, 60, 70, 84, 87, 98, 105, 106, 116, 140, 145, 147, 159, 174, 196, 203, 210, 212, 245, 265, 290, 294, 318, 343, 348, 371, 406, 420, 435, 490, 530, 580, 588, 609, 636, 686, 735, 742, 795, 812, 870, 980, 1015, 1029, 1060, 1113, 1218, 1372, 1421, 1470, 1484, 1537, 1590, 1715, 1740, 1855, 2030, 2058, 2226, 2401, 2436, 2597, 2842, 2940, 3045, 3074, 3180, 3430, 3710, 4060, 4116, 4263, 4452, 4611, 4802, 5145, 5194, 5565, 5684, 6090, 6148, 6860, 7105, 7203, 7420, 7685, 7791, 8526, 9222, 9604, 9947, 10290, 10388, 10759, 11130, 12005, 12180, 12985, 14210, 14406, 15370, 15582, 17052, 18179, 18444, 19894, 20580, 21315, 21518, 22260, 23055, 24010, 25970, 28420, 28812, 29841, 30740, 31164, 32277, 36015, 36358, 38955, 39788, 42630, 43036, 46110, 48020, 49735, 51940, 53795, 54537, 59682, 64554, 69629, 72030, 72716, 75313, 77910, 85260, 90895, 92220, 99470, 107590, 109074, 119364, 127253, 129108, 139258, 144060, 149205, 150626, 155820, 161385, 181790, 198940, 208887, 215180, 218148, 225939, 254506, 272685, 278516, 298410, 301252, 322770, 348145, 363580, 376565, 381759, 417774, 451878, 509012, 527191, 545370, 596820, 636265, 645540, 696290, 753130, 763518, 835548, 903756, 1044435, 1054382, 1090740, 1129695, 1272530, 1392580, 1506260, 1527036, 1581573, 1908795, 2088870, 2108764, 2259390, 2545060, 2635955, 3163146, 3690337, 3817590, 4177740, 4518780, 5271910, 6326292, 7380674, 7635180, 7907865, 10543820, 11071011, 14761348, 15815730, 18451685, 22142022, 31631460, 36903370, 44284044, 55355055, 73806740, 110710110, 221420220]

約数ペア:

[(1, 221420220), (2, 110710110), (3, 73806740), (4, 55355055), (5, 44284044), (6, 36903370), (7, 31631460), (10, 22142022), (12, 18451685), (14, 15815730), (15, 14761348), (20, 11071011), (21, 10543820), (28, 7907865), (29, 7635180), (30, 7380674), (35, 6326292), (42, 5271910), (49, 4518780), (53, 4177740), (58, 3817590), (60, 3690337), (70, 3163146), (84, 2635955), (87, 2545060), (98, 2259390), (105, 2108764), (106, 2088870), (116, 1908795), (140, 1581573), (145, 1527036), (147, 1506260), (159, 1392580), (174, 1272530), (196, 1129695), (203, 1090740), (210, 1054382), (212, 1044435), (245, 903756), (265, 835548), (290, 763518), (294, 753130), (318, 696290), (343, 645540), (348, 636265), (371, 596820), (406, 545370), (420, 527191), (435, 509012), (490, 451878), (530, 417774), (580, 381759), (588, 376565), (609, 363580), (636, 348145), (686, 322770), (735, 301252), (742, 298410), (795, 278516), (812, 272685), (870, 254506), (980, 225939), (1015, 218148), (1029, 215180), (1060, 208887), (1113, 198940), (1218, 181790), (1372, 161385), (1421, 155820), (1470, 150626), (1484, 149205), (1537, 144060), (1590, 139258), (1715, 129108), (1740, 127253), (1855, 119364), (2030, 109074), (2058, 107590), (2226, 99470), (2401, 92220), (2436, 90895), (2597, 85260), (2842, 77910), (2940, 75313), (3045, 72716), (3074, 72030), (3180, 69629), (3430, 64554), (3710, 59682), (4060, 54537), (4116, 53795), (4263, 51940), (4452, 49735), (4611, 48020), (4802, 46110), (5145, 43036), (5194, 42630), (5565, 39788), (5684, 38955), (6090, 36358), (6148, 36015), (6860, 32277), (7105, 31164), (7203, 30740), (7420, 29841), (7685, 28812), (7791, 28420), (8526, 25970), (9222, 24010), (9604, 23055), (9947, 22260), (10290, 21518), (10388, 21315), (10759, 20580), (11130, 19894), (12005, 18444), (12180, 18179), (12985, 17052), (14210, 15582), (14406, 15370)]