20804915955

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1\times {\mathrm{177797}}^1$

素因数の和:178103

約数の個数: 32

約数和(自身を含む): 34563931200

約数和(自身を除く): 13759015245

約数列:

[1, 3, 5, 15, 29, 87, 145, 269, 435, 807, 1345, 4035, 7801, 23403, 39005, 117015, 177797, 533391, 888985, 2666955, 5156113, 15468339, 25780565, 47827393, 77341695, 143482179, 239136965, 717410895, 1386994397, 4160983191, 6934971985, 20804915955]

約数ペア:

[(1, 20804915955), (3, 6934971985), (5, 4160983191), (15, 1386994397), (29, 717410895), (87, 239136965), (145, 143482179), (269, 77341695), (435, 47827393), (807, 25780565), (1345, 15468339), (4035, 5156113), (7801, 2666955), (23403, 888985), (39005, 533391), (117015, 177797)]