28519875

素因数分解:

$3^2\times 5^3\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:373

約数の個数: 48

約数和(自身を含む): 52127712

約数和(自身を除く): 23607837

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 101, 125, 225, 251, 303, 375, 505, 753, 909, 1125, 1255, 1515, 2259, 2525, 3765, 4545, 6275, 7575, 11295, 12625, 18825, 22725, 25351, 31375, 37875, 56475, 76053, 94125, 113625, 126755, 228159, 282375, 380265, 633775, 1140795, 1901325, 3168875, 5703975, 9506625, 28519875]

約数ペア:

[(1, 28519875), (3, 9506625), (5, 5703975), (9, 3168875), (15, 1901325), (25, 1140795), (45, 633775), (75, 380265), (101, 282375), (125, 228159), (225, 126755), (251, 113625), (303, 94125), (375, 76053), (505, 56475), (753, 37875), (909, 31375), (1125, 25351), (1255, 22725), (1515, 18825), (2259, 12625), (2525, 11295), (3765, 7575), (4545, 6275)]