19868775

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 35235840

約数和(自身を除く): 15367065

約数列:

[1, 3, 5, 15, 19, 25, 57, 73, 75, 95, 191, 219, 285, 365, 475, 573, 955, 1095, 1387, 1425, 1825, 2865, 3629, 4161, 4775, 5475, 6935, 10887, 13943, 14325, 18145, 20805, 34675, 41829, 54435, 69715, 90725, 104025, 209145, 264917, 272175, 348575, 794751, 1045725, 1324585, 3973755, 6622925, 19868775]

約数ペア:

[(1, 19868775), (3, 6622925), (5, 3973755), (15, 1324585), (19, 1045725), (25, 794751), (57, 348575), (73, 272175), (75, 264917), (95, 209145), (191, 104025), (219, 90725), (285, 69715), (365, 54435), (475, 41829), (573, 34675), (955, 20805), (1095, 18145), (1387, 14325), (1425, 13943), (1825, 10887), (2865, 6935), (3629, 5475), (4161, 4775)]