20129376946

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{7823}}^1$

素因数の和:8047

約数の個数: 64

約数和(自身を含む): 36882210816

約数和(自身を除く): 16752833870

約数列:

[1, 2, 7, 14, 23, 46, 61, 122, 131, 161, 262, 322, 427, 854, 917, 1403, 1834, 2806, 3013, 6026, 7823, 7991, 9821, 15646, 15982, 19642, 21091, 42182, 54761, 55937, 109522, 111874, 179929, 183793, 359858, 367586, 477203, 954406, 1024813, 1259503, 1286551, 2049626, 2519006, 2573102, 3340421, 6680842, 7173691, 10975669, 14347382, 21951338, 23570699, 47141398, 62513593, 76829683, 125027186, 153659366, 164994893, 329989786, 437595151, 875190302, 1437812639, 2875625278, 10064688473, 20129376946]

約数ペア:

[(1, 20129376946), (2, 10064688473), (7, 2875625278), (14, 1437812639), (23, 875190302), (46, 437595151), (61, 329989786), (122, 164994893), (131, 153659366), (161, 125027186), (262, 76829683), (322, 62513593), (427, 47141398), (854, 23570699), (917, 21951338), (1403, 14347382), (1834, 10975669), (2806, 7173691), (3013, 6680842), (6026, 3340421), (7823, 2573102), (7991, 2519006), (9821, 2049626), (15646, 1286551), (15982, 1259503), (19642, 1024813), (21091, 954406), (42182, 477203), (54761, 367586), (55937, 359858), (109522, 183793), (111874, 179929)]