19781250

素因数分解:

$2^1\times 3^1\times 5^6\times {\mathrm{211}}^1$

素因数の和:246

約数の個数: 56

約数和(自身を含む): 49686864

約数和(自身を除く): 29905614

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 211, 250, 375, 422, 625, 633, 750, 1055, 1250, 1266, 1875, 2110, 3125, 3165, 3750, 5275, 6250, 6330, 9375, 10550, 15625, 15825, 18750, 26375, 31250, 31650, 46875, 52750, 79125, 93750, 131875, 158250, 263750, 395625, 659375, 791250, 1318750, 1978125, 3296875, 3956250, 6593750, 9890625, 19781250]

約数ペア:

[(1, 19781250), (2, 9890625), (3, 6593750), (5, 3956250), (6, 3296875), (10, 1978125), (15, 1318750), (25, 791250), (30, 659375), (50, 395625), (75, 263750), (125, 158250), (150, 131875), (211, 93750), (250, 79125), (375, 52750), (422, 46875), (625, 31650), (633, 31250), (750, 26375), (1055, 18750), (1250, 15825), (1266, 15625), (1875, 10550), (2110, 9375), (3125, 6330), (3165, 6250), (3750, 5275)]