20121963620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1531}}^1\times {\mathrm{5431}}^1$

素因数の和:6993

約数の個数: 72

約数和(自身を含む): 46485708864

約数和(自身を除く): 26363745244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 1531, 2420, 3062, 5431, 6124, 7655, 10862, 15310, 16841, 21724, 27155, 30620, 33682, 54310, 59741, 67364, 84205, 108620, 119482, 168410, 185251, 238964, 298705, 336820, 370502, 597410, 657151, 741004, 926255, 1194820, 1314302, 1852510, 2628604, 3285755, 3705020, 6571510, 8314861, 13143020, 16629722, 33259444, 41574305, 83148610, 91463471, 166297220, 182926942, 365853884, 457317355, 914634710, 1006098181, 1829269420, 2012196362, 4024392724, 5030490905, 10060981810, 20121963620]

約数ペア:

[(1, 20121963620), (2, 10060981810), (4, 5030490905), (5, 4024392724), (10, 2012196362), (11, 1829269420), (20, 1006098181), (22, 914634710), (44, 457317355), (55, 365853884), (110, 182926942), (121, 166297220), (220, 91463471), (242, 83148610), (484, 41574305), (605, 33259444), (1210, 16629722), (1531, 13143020), (2420, 8314861), (3062, 6571510), (5431, 3705020), (6124, 3285755), (7655, 2628604), (10862, 1852510), (15310, 1314302), (16841, 1194820), (21724, 926255), (27155, 741004), (30620, 657151), (33682, 597410), (54310, 370502), (59741, 336820), (67364, 298705), (84205, 238964), (108620, 185251), (119482, 168410)]