78957320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151841}}^1$

素因数の和:151865

約数の個数: 32

約数和(自身を含む): 191320920

約数和(自身を除く): 112363600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 151841, 303682, 607364, 759205, 1214728, 1518410, 1973933, 3036820, 3947866, 6073640, 7895732, 9869665, 15791464, 19739330, 39478660, 78957320]

約数ペア:

[(1, 78957320), (2, 39478660), (4, 19739330), (5, 15791464), (8, 9869665), (10, 7895732), (13, 6073640), (20, 3947866), (26, 3036820), (40, 1973933), (52, 1518410), (65, 1214728), (104, 759205), (130, 607364), (260, 303682), (520, 151841)]