278328180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{356831}}^1$

素因数の和:356856

約数の個数: 48

約数和(自身を含む): 839268864

約数和(自身を除く): 560940684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 356831, 713662, 1070493, 1427324, 1784155, 2140986, 3568310, 4281972, 4638803, 5352465, 7136620, 9277606, 10704930, 13916409, 18555212, 21409860, 23194015, 27832818, 46388030, 55665636, 69582045, 92776060, 139164090, 278328180]

約数ペア:

[(1, 278328180), (2, 139164090), (3, 92776060), (4, 69582045), (5, 55665636), (6, 46388030), (10, 27832818), (12, 23194015), (13, 21409860), (15, 18555212), (20, 13916409), (26, 10704930), (30, 9277606), (39, 7136620), (52, 5352465), (60, 4638803), (65, 4281972), (78, 3568310), (130, 2140986), (156, 1784155), (195, 1427324), (260, 1070493), (390, 713662), (780, 356831)]