18787290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1453}}^1$

素因数の和:1894

約数の個数: 32

約数和(自身を含む): 45225216

約数和(自身を除く): 26437926

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 431, 862, 1293, 1453, 2155, 2586, 2906, 4310, 4359, 6465, 7265, 8718, 12930, 14530, 21795, 43590, 626243, 1252486, 1878729, 3131215, 3757458, 6262430, 9393645, 18787290]

約数ペア:

[(1, 18787290), (2, 9393645), (3, 6262430), (5, 3757458), (6, 3131215), (10, 1878729), (15, 1252486), (30, 626243), (431, 43590), (862, 21795), (1293, 14530), (1453, 12930), (2155, 8718), (2586, 7265), (2906, 6465), (4310, 4359)]