18420820990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{7459}}^1$

素因数の和:7658

約数の個数: 96

約数和(自身を含む): 39504638880

約数和(自身を除く): 21083817890

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 157, 242, 286, 314, 605, 715, 785, 1210, 1430, 1570, 1573, 1727, 2041, 3146, 3454, 4082, 7459, 7865, 8635, 10205, 14918, 15730, 17270, 18997, 20410, 22451, 37295, 37994, 44902, 74590, 82049, 94985, 96967, 112255, 164098, 189970, 193934, 224510, 246961, 410245, 484835, 493922, 820490, 902539, 969670, 1066637, 1171063, 1234805, 1805078, 2133274, 2342126, 2469610, 4512695, 5333185, 5855315, 9025390, 10666370, 11710630, 11733007, 12881693, 15223819, 23466014, 25763386, 30447638, 58665035, 64408465, 76119095, 117330070, 128816930, 141698623, 152238190, 167462009, 283397246, 334924018, 708493115, 837310045, 1416986230, 1674620090, 1842082099, 3684164198, 9210410495, 18420820990]

約数ペア:

[(1, 18420820990), (2, 9210410495), (5, 3684164198), (10, 1842082099), (11, 1674620090), (13, 1416986230), (22, 837310045), (26, 708493115), (55, 334924018), (65, 283397246), (110, 167462009), (121, 152238190), (130, 141698623), (143, 128816930), (157, 117330070), (242, 76119095), (286, 64408465), (314, 58665035), (605, 30447638), (715, 25763386), (785, 23466014), (1210, 15223819), (1430, 12881693), (1570, 11733007), (1573, 11710630), (1727, 10666370), (2041, 9025390), (3146, 5855315), (3454, 5333185), (4082, 4512695), (7459, 2469610), (7865, 2342126), (8635, 2133274), (10205, 1805078), (14918, 1234805), (15730, 1171063), (17270, 1066637), (18997, 969670), (20410, 902539), (22451, 820490), (37295, 493922), (37994, 484835), (44902, 410245), (74590, 246961), (82049, 224510), (94985, 193934), (96967, 189970), (112255, 164098)]