19294990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 41513472

約数和(自身を除く): 22218482

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 103, 110, 130, 131, 143, 206, 262, 286, 515, 655, 715, 1030, 1133, 1310, 1339, 1430, 1441, 1703, 2266, 2678, 2882, 3406, 5665, 6695, 7205, 8515, 11330, 13390, 13493, 14410, 14729, 17030, 18733, 26986, 29458, 37466, 67465, 73645, 93665, 134930, 147290, 148423, 175409, 187330, 296846, 350818, 742115, 877045, 1484230, 1754090, 1929499, 3858998, 9647495, 19294990]

約数ペア:

[(1, 19294990), (2, 9647495), (5, 3858998), (10, 1929499), (11, 1754090), (13, 1484230), (22, 877045), (26, 742115), (55, 350818), (65, 296846), (103, 187330), (110, 175409), (130, 148423), (131, 147290), (143, 134930), (206, 93665), (262, 73645), (286, 67465), (515, 37466), (655, 29458), (715, 26986), (1030, 18733), (1133, 17030), (1310, 14729), (1339, 14410), (1430, 13493), (1441, 13390), (1703, 11330), (2266, 8515), (2678, 7205), (2882, 6695), (3406, 5665)]