129128440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{20051}}^1$

素因数の和:20092

約数の個数: 64

約数和(自身を含む): 346498560

約数和(自身を除く): 217370120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 20051, 40102, 80204, 100255, 140357, 160408, 200510, 280714, 401020, 461173, 561428, 701785, 802040, 922346, 1122856, 1403570, 1844692, 2305865, 2807140, 3228211, 3689384, 4611730, 5614280, 6456422, 9223460, 12912844, 16141055, 18446920, 25825688, 32282110, 64564220, 129128440]

約数ペア:

[(1, 129128440), (2, 64564220), (4, 32282110), (5, 25825688), (7, 18446920), (8, 16141055), (10, 12912844), (14, 9223460), (20, 6456422), (23, 5614280), (28, 4611730), (35, 3689384), (40, 3228211), (46, 2807140), (56, 2305865), (70, 1844692), (92, 1403570), (115, 1122856), (140, 922346), (161, 802040), (184, 701785), (230, 561428), (280, 461173), (322, 401020), (460, 280714), (644, 200510), (805, 160408), (920, 140357), (1288, 100255), (1610, 80204), (3220, 40102), (6440, 20051)]