20559930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{359}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31694790

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 83, 115, 138, 166, 230, 249, 345, 359, 415, 498, 690, 718, 830, 1077, 1245, 1795, 1909, 2154, 2490, 3590, 3818, 5385, 5727, 8257, 9545, 10770, 11454, 16514, 19090, 24771, 28635, 29797, 41285, 49542, 57270, 59594, 82570, 89391, 123855, 148985, 178782, 247710, 297970, 446955, 685331, 893910, 1370662, 2055993, 3426655, 4111986, 6853310, 10279965, 20559930]

約数ペア:

[(1, 20559930), (2, 10279965), (3, 6853310), (5, 4111986), (6, 3426655), (10, 2055993), (15, 1370662), (23, 893910), (30, 685331), (46, 446955), (69, 297970), (83, 247710), (115, 178782), (138, 148985), (166, 123855), (230, 89391), (249, 82570), (345, 59594), (359, 57270), (415, 49542), (498, 41285), (690, 29797), (718, 28635), (830, 24771), (1077, 19090), (1245, 16514), (1795, 11454), (1909, 10770), (2154, 9545), (2490, 8257), (3590, 5727), (3818, 5385)]