19430025

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 33950208

約数和(自身を除く): 14520183

約数列:

[1, 3, 5, 15, 25, 31, 61, 75, 93, 137, 155, 183, 305, 411, 465, 685, 775, 915, 1525, 1891, 2055, 2325, 3425, 4247, 4575, 5673, 8357, 9455, 10275, 12741, 21235, 25071, 28365, 41785, 47275, 63705, 106175, 125355, 141825, 208925, 259067, 318525, 626775, 777201, 1295335, 3886005, 6476675, 19430025]

約数ペア:

[(1, 19430025), (3, 6476675), (5, 3886005), (15, 1295335), (25, 777201), (31, 626775), (61, 318525), (75, 259067), (93, 208925), (137, 141825), (155, 125355), (183, 106175), (305, 63705), (411, 47275), (465, 41785), (685, 28365), (775, 25071), (915, 21235), (1525, 12741), (1891, 10275), (2055, 9455), (2325, 8357), (3425, 5673), (4247, 4575)]