28638680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4447}}^1$

素因数の和:4488

約数の個数: 64

約数和(自身を含む): 76861440

約数和(自身を除く): 48222760

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, 4447, 6440, 8894, 17788, 22235, 31129, 35576, 44470, 62258, 88940, 102281, 124516, 155645, 177880, 204562, 249032, 311290, 409124, 511405, 622580, 715967, 818248, 1022810, 1245160, 1431934, 2045620, 2863868, 3579835, 4091240, 5727736, 7159670, 14319340, 28638680]

約数ペア:

[(1, 28638680), (2, 14319340), (4, 7159670), (5, 5727736), (7, 4091240), (8, 3579835), (10, 2863868), (14, 2045620), (20, 1431934), (23, 1245160), (28, 1022810), (35, 818248), (40, 715967), (46, 622580), (56, 511405), (70, 409124), (92, 311290), (115, 249032), (140, 204562), (161, 177880), (184, 155645), (230, 124516), (280, 102281), (322, 88940), (460, 62258), (644, 44470), (805, 35576), (920, 31129), (1288, 22235), (1610, 17788), (3220, 8894), (4447, 6440)]