2571975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 5571072

約数和(自身を除く): 2999097

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 25, 35, 45, 63, 69, 71, 75, 105, 115, 161, 175, 207, 213, 225, 315, 345, 355, 483, 497, 525, 575, 639, 805, 1035, 1065, 1449, 1491, 1575, 1633, 1725, 1775, 2415, 2485, 3195, 4025, 4473, 4899, 5175, 5325, 7245, 7455, 8165, 11431, 12075, 12425, 14697, 15975, 22365, 24495, 34293, 36225, 37275, 40825, 57155, 73485, 102879, 111825, 122475, 171465, 285775, 367425, 514395, 857325, 2571975]

約数ペア:

[(1, 2571975), (3, 857325), (5, 514395), (7, 367425), (9, 285775), (15, 171465), (21, 122475), (23, 111825), (25, 102879), (35, 73485), (45, 57155), (63, 40825), (69, 37275), (71, 36225), (75, 34293), (105, 24495), (115, 22365), (161, 15975), (175, 14697), (207, 12425), (213, 12075), (225, 11431), (315, 8165), (345, 7455), (355, 7245), (483, 5325), (497, 5175), (525, 4899), (575, 4473), (639, 4025), (805, 3195), (1035, 2485), (1065, 2415), (1449, 1775), (1491, 1725), (1575, 1633)]