15678870220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{87523}}^1$

素因数の和:87611

約数の個数: 72

約数和(自身を含む): 36326311056

約数和(自身を除く): 20647440836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 169, 212, 260, 265, 338, 530, 676, 689, 845, 1060, 1378, 1690, 2756, 3380, 3445, 6890, 8957, 13780, 17914, 35828, 44785, 87523, 89570, 175046, 179140, 350092, 437615, 875230, 1137799, 1750460, 2275598, 4551196, 4638719, 5688995, 9277438, 11377990, 14791387, 18554876, 22755980, 23193595, 29582774, 46387190, 59165548, 60303347, 73956935, 92774380, 120606694, 147913870, 241213388, 295827740, 301516735, 603033470, 783943511, 1206066940, 1567887022, 3135774044, 3919717555, 7839435110, 15678870220]

約数ペア:

[(1, 15678870220), (2, 7839435110), (4, 3919717555), (5, 3135774044), (10, 1567887022), (13, 1206066940), (20, 783943511), (26, 603033470), (52, 301516735), (53, 295827740), (65, 241213388), (106, 147913870), (130, 120606694), (169, 92774380), (212, 73956935), (260, 60303347), (265, 59165548), (338, 46387190), (530, 29582774), (676, 23193595), (689, 22755980), (845, 18554876), (1060, 14791387), (1378, 11377990), (1690, 9277438), (2756, 5688995), (3380, 4638719), (3445, 4551196), (6890, 2275598), (8957, 1750460), (13780, 1137799), (17914, 875230), (35828, 437615), (44785, 350092), (87523, 179140), (89570, 175046)]