20189875108

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1\times {\mathrm{8461}}^1$

素因数の和:9008

約数の個数: 48

約数和(自身を含む): 38494991920

約数和(自身を除く): 18305116812

約数列:

[1, 2, 4, 13, 26, 52, 109, 218, 421, 436, 842, 1417, 1684, 2834, 5473, 5668, 8461, 10946, 16922, 21892, 33844, 45889, 91778, 109993, 183556, 219986, 439972, 596557, 922249, 1193114, 1844498, 2386228, 3562081, 3688996, 7124162, 11989237, 14248324, 23978474, 46307053, 47956948, 92614106, 185228212, 388266829, 776533658, 1553067316, 5047468777, 10094937554, 20189875108]

約数ペア:

[(1, 20189875108), (2, 10094937554), (4, 5047468777), (13, 1553067316), (26, 776533658), (52, 388266829), (109, 185228212), (218, 92614106), (421, 47956948), (436, 46307053), (842, 23978474), (1417, 14248324), (1684, 11989237), (2834, 7124162), (5473, 3688996), (5668, 3562081), (8461, 2386228), (10946, 1844498), (16922, 1193114), (21892, 922249), (33844, 596557), (45889, 439972), (91778, 219986), (109993, 183556)]