61978665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{661}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 122019840

約数和(自身を除く): 60041175

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 47, 57, 95, 105, 133, 141, 235, 285, 329, 399, 661, 665, 705, 893, 987, 1645, 1983, 1995, 2679, 3305, 4465, 4627, 4935, 6251, 9915, 12559, 13395, 13881, 18753, 23135, 31067, 31255, 37677, 62795, 69405, 87913, 93201, 93765, 155335, 188385, 217469, 263739, 439565, 466005, 590273, 652407, 1087345, 1318695, 1770819, 2951365, 3262035, 4131911, 8854095, 12395733, 20659555, 61978665]

約数ペア:

[(1, 61978665), (3, 20659555), (5, 12395733), (7, 8854095), (15, 4131911), (19, 3262035), (21, 2951365), (35, 1770819), (47, 1318695), (57, 1087345), (95, 652407), (105, 590273), (133, 466005), (141, 439565), (235, 263739), (285, 217469), (329, 188385), (399, 155335), (661, 93765), (665, 93201), (705, 87913), (893, 69405), (987, 62795), (1645, 37677), (1983, 31255), (1995, 31067), (2679, 23135), (3305, 18753), (4465, 13881), (4627, 13395), (4935, 12559), (6251, 9915)]