28166970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72223}}^1$

素因数の和:72246

約数の個数: 32

約数和(自身を含む): 72801792

約数和(自身を除く): 44634822

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72223, 144446, 216669, 361115, 433338, 722230, 938899, 1083345, 1877798, 2166690, 2816697, 4694495, 5633394, 9388990, 14083485, 28166970]

約数ペア:

[(1, 28166970), (2, 14083485), (3, 9388990), (5, 5633394), (6, 4694495), (10, 2816697), (13, 2166690), (15, 1877798), (26, 1083345), (30, 938899), (39, 722230), (65, 433338), (78, 361115), (130, 216669), (195, 144446), (390, 72223)]