20888935740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1\times {\mathrm{3109}}^1$

素因数の和:3516

約数の個数: 144

約数和(自身を含む): 64050823200

約数和(自身を除く): 43161887460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 229, 326, 458, 489, 652, 687, 815, 916, 978, 1145, 1374, 1467, 1630, 1956, 2061, 2290, 2445, 2748, 2934, 3109, 3260, 3435, 4122, 4580, 4890, 5868, 6218, 6870, 7335, 8244, 9327, 9780, 10305, 12436, 13740, 14670, 15545, 18654, 20610, 27981, 29340, 31090, 37308, 37327, 41220, 46635, 55962, 62180, 74654, 93270, 111924, 111981, 139905, 149308, 186540, 186635, 223962, 279810, 335943, 373270, 447924, 506767, 559620, 559905, 671886, 711961, 746540, 1013534, 1119810, 1343772, 1423922, 1520301, 1679715, 2027068, 2135883, 2239620, 2533835, 2847844, 3040602, 3359430, 3559805, 4271766, 4560903, 5067670, 6081204, 6407649, 6718860, 7119610, 7601505, 8543532, 9121806, 10135340, 10679415, 12815298, 14239220, 15203010, 18243612, 21358830, 22804515, 25630596, 30406020, 32038245, 42717660, 45609030, 64076490, 91218060, 116049643, 128152980, 232099286, 348148929, 464198572, 580248215, 696297858, 1044446787, 1160496430, 1392595716, 1740744645, 2088893574, 2320992860, 3481489290, 4177787148, 5222233935, 6962978580, 10444467870, 20888935740]

約数ペア:

[(1, 20888935740), (2, 10444467870), (3, 6962978580), (4, 5222233935), (5, 4177787148), (6, 3481489290), (9, 2320992860), (10, 2088893574), (12, 1740744645), (15, 1392595716), (18, 1160496430), (20, 1044446787), (30, 696297858), (36, 580248215), (45, 464198572), (60, 348148929), (90, 232099286), (163, 128152980), (180, 116049643), (229, 91218060), (326, 64076490), (458, 45609030), (489, 42717660), (652, 32038245), (687, 30406020), (815, 25630596), (916, 22804515), (978, 21358830), (1145, 18243612), (1374, 15203010), (1467, 14239220), (1630, 12815298), (1956, 10679415), (2061, 10135340), (2290, 9121806), (2445, 8543532), (2748, 7601505), (2934, 7119610), (3109, 6718860), (3260, 6407649), (3435, 6081204), (4122, 5067670), (4580, 4560903), (4890, 4271766), (5868, 3559805), (6218, 3359430), (6870, 3040602), (7335, 2847844), (8244, 2533835), (9327, 2239620), (9780, 2135883), (10305, 2027068), (12436, 1679715), (13740, 1520301), (14670, 1423922), (15545, 1343772), (18654, 1119810), (20610, 1013534), (27981, 746540), (29340, 711961), (31090, 671886), (37308, 559905), (37327, 559620), (41220, 506767), (46635, 447924), (55962, 373270), (62180, 335943), (74654, 279810), (93270, 223962), (111924, 186635), (111981, 186540), (139905, 149308)]