31428040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1049}}^1$

素因数の和:1174

約数の個数: 64

約数和(自身を含む): 81648000

約数和(自身を除く): 50219960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 107, 140, 214, 280, 428, 535, 749, 856, 1049, 1070, 1498, 2098, 2140, 2996, 3745, 4196, 4280, 5245, 5992, 7343, 7490, 8392, 10490, 14686, 14980, 20980, 29372, 29960, 36715, 41960, 58744, 73430, 112243, 146860, 224486, 293720, 448972, 561215, 785701, 897944, 1122430, 1571402, 2244860, 3142804, 3928505, 4489720, 6285608, 7857010, 15714020, 31428040]

約数ペア:

[(1, 31428040), (2, 15714020), (4, 7857010), (5, 6285608), (7, 4489720), (8, 3928505), (10, 3142804), (14, 2244860), (20, 1571402), (28, 1122430), (35, 897944), (40, 785701), (56, 561215), (70, 448972), (107, 293720), (140, 224486), (214, 146860), (280, 112243), (428, 73430), (535, 58744), (749, 41960), (856, 36715), (1049, 29960), (1070, 29372), (1498, 20980), (2098, 14980), (2140, 14686), (2996, 10490), (3745, 8392), (4196, 7490), (4280, 7343), (5245, 5992)]