78411320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{150791}}^1$

素因数の和:150815

約数の個数: 32

約数和(自身を含む): 189997920

約数和(自身を除く): 111586600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 150791, 301582, 603164, 753955, 1206328, 1507910, 1960283, 3015820, 3920566, 6031640, 7841132, 9801415, 15682264, 19602830, 39205660, 78411320]

約数ペア:

[(1, 78411320), (2, 39205660), (4, 19602830), (5, 15682264), (8, 9801415), (10, 7841132), (13, 6031640), (20, 3920566), (26, 3015820), (40, 1960283), (52, 1507910), (65, 1206328), (104, 753955), (130, 603164), (260, 301582), (520, 150791)]