128626120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19973}}^1$

素因数の和:20014

約数の個数: 64

約数和(自身を含む): 345150720

約数和(自身を除く): 216524600

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, 19973, 39946, 79892, 99865, 139811, 159784, 199730, 279622, 399460, 459379, 559244, 699055, 798920, 918758, 1118488, 1398110, 1837516, 2296895, 2796220, 3215653, 3675032, 4593790, 5592440, 6431306, 9187580, 12862612, 16078265, 18375160, 25725224, 32156530, 64313060, 128626120]

約数ペア:

[(1, 128626120), (2, 64313060), (4, 32156530), (5, 25725224), (7, 18375160), (8, 16078265), (10, 12862612), (14, 9187580), (20, 6431306), (23, 5592440), (28, 4593790), (35, 3675032), (40, 3215653), (46, 2796220), (56, 2296895), (70, 1837516), (92, 1398110), (115, 1118488), (140, 918758), (161, 798920), (184, 699055), (230, 559244), (280, 459379), (322, 399460), (460, 279622), (644, 199730), (805, 159784), (920, 139811), (1288, 99865), (1610, 79892), (3220, 39946), (6440, 19973)]